Halo: Combat Evolved: Walkthrough
MISSION 1: Autumn Column
After watching the video, you will find yourself inside a cryo tube. Follow the on-screen instructions until you are tasked with finding Captain Case on the bridge.
Exit the training room and follow the instructor to the door. But make sure to stand back from him by a few meters. When the door opens automatically, a powerful explosion will occur, and the instructor will perish. Turn and look to the right - you should see two tubes. Jump over them and enter the door on the right. You will find yourself in a narrow hallway. Walk to the end of it, and another explosion will occur. Press tightly against the left wall and go through the door.
Once you are behind the door, you will see a soldier to your left. Crawl under the half-open door and go to the right. Keep moving forward until you see a door on the left, with a large blue arrow on the floor marked 'bridge.' Enter this door to get into a dark room. When you approach the next door and open it, an Elite (a huge monster with a gun) will appear in the doorway. Allies will arrive in time and push the monster back, allowing you to continue your path - through the hallway to the left.
When you notice a large scuffle between people and the Agreement, approach the soldier standing in the doorway. He will lead you to the captain's bridge. All you need to do is quietly follow him. Once the soldier stops, enter the control room on the right and find Captain Case there.
After talking with Captain Case, you decide to move towards the ship's lifeboats. Leave the captain's bridge and turn left into the corridor as you exit. You will finally get a weapon in your hands, without which further movement will be problematic. Test the weapon on a few aliens lurking behind the first left turn. Then proceed to the dining hall, where a group of fighters is engaged in combat with alien creatures. Make your way to the exit of the dining hall in the far right corner. Once you leave the inhospitable place, cross the hallway towards the tunnel entrance, next to which is a med kit. Run forward until you see two fighters aiming at the entrance to lifeboat 31. After the explosion, hordes of aliens will burst out, and your task is to eliminate all the monsters as quickly as possible before they scatter throughout the ship. Then, after running a bit forward, enter the dark tunnel where a couple of space monsters are lurking. As you exit the tunnel, turn right and run forward through the hallways until another group of fighters comes into view. Before reaching them, turn right into the corridor and, moving forward, eliminate all the aliens. Then enter the tunnel where a med kit is hanging on the wall near the entrance. Run through the corridor to lifeboat 32. After eliminating all the aliens hiding behind the energy shield, head towards the entrance to the dark room. From there, get into the neighboring room through slightly ajar gates. Before reaching the far wall, turn left and head towards a large room from which the sounds of intense gunfire are coming. Climb the stairs and, circling around the room, find the exit. Then run towards the dimly lit room, turn right from there, and after running a bit forward, enter the brightly lit tunnel. Run forward with the other fighters. Upon reaching a dead end, turn right and enter the door that closes off the entrance to the tunnel. Inside the tunnel, turn on the flashlight, and now you can search for an exit. After walking a bit forward, turn left and then move through the tunnel looking for an open exit, indicated by a glowing green light near the door. Once you've emerged from the tunnel, approach the half-open gates and pull them open as hard as you can. Run through the corridor to the spacious room, and from there, enter the tunnel. After passing a computer terminal, you will see an alien appearing ahead. After dealing with the monster, turn right and walk to the pile of crates and other debris, then enter the tunnel through the left door. After taking a few steps inside, turn left and continue towards the exit. Once out of the tunnel, turn the corner and run to the barricade made of building debris. Pick up some grenades near the barricade and throw them one by one into the cluster of aliens. After destroying as many enemies as possible, enter the tunnel. Take a few steps forward, turn right, then move a little further and turn right again. Exiting the tunnel, you will find yourself on the other side of the barricade. Head towards the lifeboat, with which you can leave the distressed ship.
Mission 2 - Halo
After the rescue pod lands on an unfamiliar planet, you are the only survivor; the other crew members have died. Your task is to find the other pods and help the survivors fend off the hordes of aliens.
Near the pod, collect ammunition and cross the gap via a wooden bridge. Run along the overhanging cliff towards sparse vegetation. As you move forward, don't forget to look at the sky; several starships are circling above you. Once the top of your head shows in the open area, they are ready to fire as much lead into you as possible. After passing the gorge, you admire the view of the grand multi-story structure. Sounds of gunfire are everywhere, and the sky is occasionally illuminated by numerous explosions. Climb the ramp to the observation deck of the building and shoot the aliens from there. After eliminating many dozens of monsters, a jeep will arrive at the building. Descend and take the driver's seat; a machine gunner sits in the back of the truck, essential for repelling alien attacks. Drive towards a small hill, and from there, descend into the gorge. Drive into the underground tunnel, and carefully move forward. Before the cliff, accelerate the vehicle and jump to the other side. Entering a spacious room resembling a warehouse, turn right and drive towards the ascending ramp. Get out of the vehicle and run up until you reach the bridge control panel. Before approaching it, eliminate the alien guarding it. When you activate the button on the control panel, you will see the bridge made of two platforms connect on the opposite side. After descending, jump into the jeep and drive to the opposite platform.
After wandering a bit through the underground tunnels, you will finally find the exit from the underground communications. Drive the jeep up the hill, then drive into the gap between the cliffs on the right side. After driving a short distance on the narrow road, you will find yourself on a plateau surrounded by mountains on all sides. Here you will find a space pod, with plenty of ammo and several med kits scattered around. Turn around and drive back, but take a slightly right turn. After a while, you will spot an inconspicuous entrance in the rock. Drive through the cave and leave the waterfall behind you, stop on the hill, which opens a beautiful view of the valley with the column in the center. Another pod has landed in the valley, and now, after descending, you need to help repel the alien attack on the surviving people. Successfully completing your mission, return to the entrance of the tunnel, turning right just before reaching it. Drive the jeep up the hill and then descend towards the complex. Turn left and drive past the boulders to the entrance of the underground tunnel. Traveling through the tunnel, find your comrades and ascend to the surface. After clearing the entire complex of aliens, get into the jeep and head towards the exit from the gorge. Then turn left and drive towards the pod. Near it, turn right and drive towards the gap between the cliffs. Through it, you will enter a valley where your team will need to work the weapons intensively. After shooting the last alien, wait for the arrival of the spaceship that will pick up your group.
Mission 3 - Truth and Agreement
Your task in this mission is to locate the crash site of the spaceship commanded by Captain Case. On a dark night, you and a group of fighters land near the suspected crash point. Move towards a stunted tree growing nearby. Behind it lies a view of a mountain plateau littered with boulders and overhanging rocky outcrops - a perfect place for an ambush. Indeed, your group stumbles upon a well-fortified alien outpost. While the other fighters engage in a firefight with the enemy, you focus on destroying the stationary automatic machine guns placed around the perimeter of the plateau. After destroying one of the aliens' military nests, continue moving forward in search of the ship. Along the way, your group encounters more enemy resistance. First, destroy the gun situated at the edge of the outcrop, then deal with the bipedal enemies. After clearing the area, continue your search. Move along the edge of the cliff, then climb up a small hill. After taking a few steps to the left, descend into a hollow and run toward two large boulders, behind which hides a narrow opening in the rock. Passing through this opening, your group encounters another fortified alien outpost. Move towards the center of the ambush, towards the round elevation emitting purple light. After destroying all the aliens, stand in the center of the circle, and in a couple of seconds, you will be lifted on board the ship.
First, fend off multiple alien groups, then head towards the gates adjacent to the tunnel entrance illuminated by a greenish light. Move forward a bit, then turn right and proceed to the column in the center of the tunnel. Exit through the door into the neighboring room and walk along the ledge to another door.
Inside, walk a few meters forward, then right down the hallway until you exit into a spacious room. Together with the fighters, clear the first half of the room, then go around the wall and enter the second half. After eliminating the last alien, the previously locked gates leading to another corridor will open. Move up the corridor until you reach the other gates. After passing them, run to the control panel in the center of the room and use it to open the hatch for the passage of the shuttle with the support team. Then, together with the fighters, head into another corridor where you can ascend to a higher level. Upon leaving the corridor, run to the far right corner towards the exit of the tunnel. Move into the room where the platform has consoles shaped like an X in the center. Exit through the door opposite and move to the second chamber where Captain Case is held. There is quite a bit of security here, but for such a well-armed team like yours, I think this shouldn't be a big problem. Open the door to the cell where Captain is held and after a brief conversation with him, sneak back to the ship. For evacuation, it’s enough to press the button on the control panel located next to the aircraft’s fuselage.
Mission 4 - Quiet Cartographer
Two shuttles drop you and your team on the shore of a sea. Ahead, you can see well-fortified enemy positions. Move towards the concrete beam, supported by a couple of columns, clearing your path from the pesky aliens. After suppressing the last firing points, take a break while a cargo plane drops a package down - a jeep, in which you will continue your adventures. Jump into the driver's seat and drive along the shore.
After a few dozen meters, the entrance to the mountain will appear ahead. As soon as your jeep climbs the mountain, turn left towards the entrance to some complex. Shoot all the guards and then enter the unfamiliar complex. Move forward to the entrance of a tunnel leading deep down. Run through the tunnel until you reach a locked door. After a couple of minutes, it will turn out that the door will only open after disabling the alarm. Head back to the surface, jump into your vehicle and drive towards the arch. After passing it, head towards the overturned jeep. Gather all the ammunition and several med kits near it; you will need them later. Now push through the alien ambush to an inconspicuous path leading high into the mountains. Climb the mountainside, using the boulders in your path for cover from the bullets and grenades of the aliens who have the advantage of height. At the top, you will encounter a few elite fighters who differ from the regular ones in that it will take you a couple of magazines from your rifle to take them down. After dealing with them, exit through the only passage in the mountain. Descend the slope to a small clearing, then turn right into a gap in the mountain. Move down the gap to the entrance of an unfamiliar structure. Inside the building, descend down the wide corridor, through which you will reach a spacious room with two elite fighters. Then, run to the other end of the room, round the wall, and enter the corridor, which will take you to the alarm control room. Use the console and finally disable the alarm; now you can return to the coast.
After a tiring walk, get into the jeep and drive to the building where you found the locked door. Before entering the building, deal with another group of aliens, and then confidently enter inside. Pass through the previously closed door and, taking a few steps to the nearest wall, turn right, heading towards the bottomless abyss. After briefly standing at the edge and accurately evaluating your chances of successfully completing the operation, turn back and run the other way. After passing through the dark tunnel, enter the open door across and then enter the left-side door from the large hall. Descend the spiral staircase into another room. Inside, move to the left wall, then cross to the opposite side and descend down the slope. Circle the room in search of a door leading to the tunnel. Leaving the tunnel, jump off the ledge and then enter another tunnel. From it, run to the tunnel on the opposite side, where you will descend into a dimly lit room. Find and activate the cartographer, then ascend back but don’t run into the tunnel opposite; instead, turn right and ascend even higher along the slope. Move from one tunnel to the other, from one corridor to another - overall the path is quite straightforward, and I think you should not get lost. After emerging from the underground corridors, run down the corridor to the edge of the platform, where a spaceship will pick you up.
Mission 5 - Assault on the Control Room
After a brief flight, the shuttle drops you off alone
on some underground landing pad. From the only exit, aliens will swarm out in hordes, and, struck by your bullets, they will drop to the floor. When the last alien is killed, enter the tunnel. It will lead you to a room with a pretty tangled architecture: passages, columns - in general, many places for the aliens to hide, and there are very many of them here. Fight your way to another exit that leads to the tunnel, and it will lead you to a bridge spanning a chasm. Before starting to cross over to the other side, eliminate two shooters sitting behind the machine-gun posts on both sides. Now you can begin to cross over to the other side of the bridge, which consists of two levels. In particularly tricky moments, you can drop down to the second level or climb up to the first. On the other side of the bridge is the entrance to the tunnel, from which you will again find yourself in a rather confusing room. Turn left and, circling it around, look for the exit. It is marked by the entrance with flashing lights and leads to a corridor that descends down. After passing through a couple of doors, you find yourself in the elevator shaft. When you press the button on the control panel, it will start to rapidly descend. When the elevator doors open, you will see a snowy glade where a battle is taking place between fighters and aliens. Run towards the overturned jeep, and before putting the pedal to the metal, collect ammunition and a med kit near it. Drive towards the frozen pond. Reaching the edge of the ice, get off the truck; you will have to continue on foot. After a few meters, you will see the downed starship and near it, the weapon that downed it - an anti-aircraft installation. Nearby, soldiers from the downed aircraft are engaging in gunfire with enemies. Together with them, take out all the aliens, and then board the flying transport - a mini-starship. The other fighters will follow your example. Fly into the tunnel carved in the mountain. At the exit from the tunnel, fly to the top of the outcropping where a stationary machine gun is installed on its edge. Now perform as a gunner, as you have an excellent view of the surrounding area from above. Then jump back into the mini-starship and fly down into the valley, specifically to the entrance to the tunnel. Before the gates, several elite fighters are on duty. Eliminate them, and afterwards, using the control panel, open the gates.
The corridor behind them leads to a bridge that spans a massive chasm. Machine guns are installed on both this side and that side of the bridge, and on the opposite side, a significant part of the aliens on duty is concentrated.
When crossing the bridge, take cover behind the ledges; this will allow you to replenish your health and reload your weapon. Once you've crossed to the other side, open another gate and make your way through the tunnel to the surface. Before your eyes, a column will appear located right in the center of the plain, the top of which is hidden in the clouds. Several entrances lead into the column; inside, you will be able to find ammunition and a few med kits. Circumventing the column, head towards the gap in the mountains, through which you will emerge on a slope leading down to a frozen river. In the distance, you can see the dam to which you need to reach. Go behind the dam column; behind it lies a small opening in the mountain. After emerging from the tunnel, climb the ledges to an expansive plateau. Head towards the gates leading into the mountain's interior. Before entering, destroy several machine guns and a group of aliens. Now you can confidently enter the belly of the mountain. The corridor will lead you into a room filled to the brim with aliens. Turn left and run forward in search of the exit. Then run through the corridor to the elevator shaft, which will take you up. From there, run through the corridor to the bridge. Cross over to the other side. Enter the tunnel and exit into another room. Exit from it and move through the corridor to the next bridge. On the other side of the bridge, enter the tunnel, which leads into a room with several elite fighters. After the battle with the aliens, find the exit from the room and exit through it onto the snowy pass. Head towards the opposite side of the pass. Enter the elevator shaft and descend down. From it, you will exit through the tunnel and find yourself on a snowy mountain plateau. Look around, and right before your eyes rises a building shaped like a pyramid. The only way up is to climb the sloped surface. Throughout the ascent to the top of the building, pairs of starships will circle above you, not to mention numerous guards on every level. Upon reaching a large observation deck, run to the slope on its right side. Before opening the gates, prepare yourself - a throng of agitated aliens will rush at you. After a few meters, another gate will appear followed by the main door to the control room.
Mission 6 - 343 Guilty Sparks
On a dark night, in inclement weather, you are dropped into a swamp filled with pesky blood-sucking insects. A few meters from your landing, a shuttle is visible, its hull half-hidden in swamp muck. Someone has already landed here before you, and there’s a possibility that you will encounter the missing team on your further path. Descend to the swampy pool and walk through it to the two boulders. After them, the wrecked spacecraft will appear, which once traversed the boundless cosmic void. Turning left, run to the trunk of a fallen tree, then climb onto it and cross over the depression. Use the machine gun to reduce the number of aliens hiding behind the dense vegetation. After that, move towards the light of two searchlights cutting through the nocturnal gloom. They are set up above the entrance to a cave, where the only value for you is an elevator platform that can take you down. Once down, step behind one of the walls, and you'll instantly see the exit from the elevator shaft. After traversing the hallway, head towards the edge of the ledge and then jump down. Enter the right-side door and, after passing through the hallway, enter another room. Move diagonally towards the door where several aliens are swirling around. The walls of the corridor are smeared with something slimy; evidently, this is what remains of the monsters killed here. Passing through the corridor, you enter a hall with a pit in the center. Move towards the ledge and, climbing up, enter through the door. After passing through several corridors, you find yourself in a room illuminated by green lights. Run toward a pile of debris, which can be climbed to the ledge. Run past the glass cube to the only door here. From the corridor, head to the control panel of the bridge. After activating it, a glowing bridge will appear, which you can cross to the other side. After passing through another corridor, you stop in front of a locked door. Open it; a dead soldier falls into your hands. Thanks to the built-in camera in the soldier’s helmet, you can watch what happened here. A truly horrifying event occurred here, resulting in the death of the entire group.
Monsters start to pour into the room, the same ones that killed the soldiers. Your task is to fend off their assault until the door through which you entered opens. As soon as the necessary door bursts open, unable to withstand the onslaught of monsters, quickly run out of the room and run through the tunnel to the bridge. Running to the other side is useless; the door is locked, and the only exit from here is the door on the right side. In the room with the glass cube in the center, jump to the floor and head towards the dark door. Inside, climb onto a pile of various debris and, from there, jump onto the ledge. Enter the door with two hieroglyphs on either side, and upon entering, immediately turn left. Move through the corridor to the far door. In the adjacent room, run to the far left corner, where the exit from this room into the elevator shaft is hidden. Once on the lift platform, descend down, and after passing through the door, walk to the edge of the ledge and jump down. Head towards the brightly lit doorway behind which the tunnel entrance is hidden. After passing through the tunnel, run towards a pile of construction debris and climb up it to the ledge.
At the top, enter the only door, then run to the door opposite. Upon reaching the edge of the platform, jump down to the floor. Enter the door leading to the tunnel, from it run through the trench to the door across. Climb onto the bloody block, then, with a run, jump onto the ledge. Exit through the door into the neighboring room. Use the control panel to activate the glowing bridge and run across it to the other side. After passing through the corridor, you find yourself in the elevator shaft. After pressing the button on the control panel, the elevator will start to rise. Along with the support team, run through the night swamp to the shore of a small lake. Wait for several purple orbs to fly overhead, and while waiting for this moment, fend off the pesky aliens.
Mission 7 - The Library
After viewing the opening video, you find yourself in a library. Your guide throughout the mission will be a floating purple orb that can also talk. It should lead you to the very heart of the library, to the index. Follow the orb through a dimly lit corridor that ends with the entrance to a tunnel. The orb dives into the tunnel, and you follow it. After the tunnel, turn left and head to the entrance of the second tunnel. After passing by two illuminated columns, the orb stops at the locked gates, which will begin to open after a couple of minutes. Follow the orb through the gallery, which ends with the entrance to the elevator shaft.
Ascend to the second level, where again follow the orb, passing numerous corridors and underground tunnels. Upon reaching the elevator shaft, ascend to the third level, where again run after the orb through endless galleries. The last platform finally brings to an end your not-so-interesting wanderings through the library. Head to the room where a beam of purple light rises to the ceiling in the center. You are just a few dozen meters from the index. Move towards the center of the radiance, shooting back at the hordes of monsters attacking you along the way.
Mission 8 - Two Betrayals
Flee from the hovering aircraft circling above you. After opening the gates with the control panel, exit into the corridor, then move a little further to another set of closed gates. After speaking with base, the gates will open, and soon the main gates closing the exit to the street will open too. Descend down the slope to a wide area filled with aliens. Move to the opposite end of the area and descend down the spiral slope. At the end of the descent, your character will meet bloodthirsty aliens, so 'greet' them properly. Then get into the nearby aircraft and soar upwards towards the raging fires in the mountains. Descend onto the platform and enter the door leading to the room with the impulse generator installed right in the center of the room. Disable it.
Exit onto the platform where your aircraft awaits. Get into it and fly to the isthmus connecting both mountains. Before landing, shoot down all the aliens; they are all laid out before you like an open book from the bird's eye view. After landing, enter the left door. After running through the tunnel, enter the room. Find the exit into the corridor. From the corridor, enter another room, where unlike the first, you'll have to scramble past the exit with considerable difficulty. The monsters will be eager to embrace you and will not release you until your body exhales its last breath. Finally escaping from here, run through the tunnel to the bridge. Fight your way across to the other side. After passing through a couple of rooms and that many corridors, you exit at the second bridge. The guards here are even more than at the first one, so you won't be bored. After wandering through the corridor and passing through the room, you will arrive at the elevator. After ascending, pass through the room and head to the opposite door leading into the canyon. Turn left and run toward a small tunnel. Through it, you will reach the ice of the frozen stream. Carefully walk on the ice up to the steep slope. You can use the jeep to climb up, but it’s better to scale it on your own. At the top, enter the canyon and run through it to the exit onto a small area surrounded on all sides by mountains. Clear the area of all aliens and, most importantly, shoot down all the aircraft hovering above you. Afterward, climb into the flying machine and ascend to an altitude of 230-250 meters above sea level. Once landed on the platform, enter the room with the generator. Toss a grenade into its center, then return to the vehicle and calmly descend down to the tunnel.
Fly through the tunnel to the closed gates, and now you will have to leave such a convenient transport and rely solely on yourself. Press the button on the control panel of the gates. The gates will open a little, and through a small gap, aliens will pour in. Once the stream of aliens subsides, enter inside.
Cross the bridge and after opening the gates on the other side of the bridge, enter into the tunnel. After running through the tunnel, you will come out into the canyon. Run through the canyon, destroying all aliens in your path. Before entering a narrow corridor, look up. You should see a lit platform at approximately 250 meters above sea level. Due to your lack of a flying machine, you cannot ascend just yet. Keep moving towards the end of the canyon, where you should find a free flying vehicle. When your search is successful, climb into the cockpit and immediately take off. After landing on the platform, exit the vehicle and enter the room where you will destroy the last generator.
Mission 9 - Captain Case
Walk down the corridor until you hit the wall. After turning right, walk to the slab blocking the passage. After talking with headquarters, turn around 180 degrees and after taking a few steps forward, turn into the corridor on the right. Upon reaching a ledge where greenish water gleams below, without hesitation, jump into the watery depths. You will emerge on the shore of a small lake at the center of the mountain range. Turn on your flashlight and look around; you will see a narrow passage in the mountain on your right side. Keeping your finger on the trigger, begin to move forward. Upon reaching a cliff where water splashes below, and nearby you see the entrance to a cave, don’t rush to jump down and blindly rush into the dark cave. First, try to clear the surrounding area of aliens thoroughly. Only after that, jump into the water and head forward into the cave. After overcoming a number of obstacles encountered on the mountain trails, you should approach a waterfall. In the center is a tall outcrop. Circle around to its left side and start climbing up the steep path. Approach the edge of the outcrop and in an instant, you will be 'transported' onto the ship.
Walk through the open doors and down the corridor to a large room. Move to the opposite end of the outcrop, where through a door you exit into a corridor going down. In the hangar, run to the exit across from you, and after taking a few steps inside the corridor, jump down through the hole in the floor. After running through the corridors to the second level, approach the machine gun mounted on a platform in the center of the room and, climbing onto it, begin to rain a lead storm down on everything alive in the surrounding area. When the flood of aliens subsides, dismount from the machine gun, and through the open doors on the right, enter the next corridor. At the exit, turn right and run towards the tunnel. Bypassing the locked door on your left side, proceed a bit further and turn left into the tunnel. Enter through the door into a room where a monster stands on a platform in the center. After ascending onto the platform, a short cutscene will play. Now you need to leave the ship as quickly as possible. Exit the room and descend down the familiar road to the very bottom of the hangar. Get into one of the two parked flying machines, and through the hatch, launch into open space.
Mission 10 - The Maw
After a comedic landing aboard an abandoned ship, contact base via radio and receive additional information on the current mission. Exit into the corridor and walk down it to a small tunnel. After moving a little forward, turn left. Go to the staircase leading down, and before descending, throw a couple of fragmentation grenades into the cluster of aliens. Once at the bottom, walk forward down the corridor. After a couple of turns in the corridor, a door will appear on your left side, which will open in a few seconds, unable to withstand the aliens' pressure. Through the open entrance, monsters of all calibers will pour towards you, and you'll have to reload your weapon quickly. Afterward, enter the now free corridor, through which you will gain access to the mess hall. Run to the far part of the room where there is an exit into a dark tunnel.
Make it to the last room on the ship, where you will have a spectacular view of open space.
After watching the cutscene, exit the tunnel. Pass by the closed door leading to the mess hall, and after walking a few meters forward, enter the next door. Go through the room to the exit leading into the corridor. Once you've dealt with all the aliens, enter the door opposite. Upon reaching the slightly ajar gates, crouch and crawl under the doors to the other side. Run down the corridor to the cryo chamber. Inside, climb up the ladder and head towards the control room, from there ascend up the slope. Upon reaching the intersection, turn left, where the entrance to the dark tunnel lies at the end of the corridor.
Turning on your flashlight, move through the tunnel and search for an exit. At the exit, turn right and following the arrows on the floor, reach the ammo depot. Go to the very end of the depot, where in a couple of seconds aliens will emerge from the dark. Destroy them all, then leave the depot and after turning the corner, enter the corridor where the inscription 'ENGINEERING' is drawn on the floor before the entrance. Upon reaching the intersection, turn right. Exiting the corridor, turn right again, and ascend up the ramp. Find the door leading to the second level, and from there ascend to the third level. Using control panels, open the reactor shutters (a total of 4) sequentially and throw grenades inside. Once all four reactor cores have been destroyed, locate the entrance to the elevator shaft. The entrance is right here, on the third level. Eliminate the aliens pouring out from the open elevator doors, then enter the cabin and start ascending. Exit the elevator into the garage. Choose any jeep, and through it, make a rather long trip to the evacuation point.