[8.4]. Mission 4 - Area 51: Escape (2)

Immediately grab the alien with B and run forward out the door. Continue down the hall and through the door at the end. Go right, kill the two guards, and go through the giant brown door. While still carrying the alien, go right through the steel door at the end and leave the alien.

Return to where you killed the two guards. Use the door on the right, kill the guard inside, run around the center of the room to the back, and go down the hallway at the end. Use the door here.

Kill every guard in this room, take their ammo and Superdragons. Go to the left side of the room and through the steel door on the left.

Out here, turn left and follow the brown catwalk to another steel door. Kill any guards in your way. Enter the room, face right, and you will find the CI spy. Objective one is complete.

Head back to the brown catwalk, ensuring the CI spy stays with you. Open the door at the end and use the grenade launcher function of your Superdragon to quickly kill the enemies.

The CI spy will set explosives on a wall to create an entry to the hangar. Protect him. Once the wall is blown up, go through the hole to complete objective two.

Kill the guard straight ahead, turn left, and go down the ramp. See the Hover Bike, then go through the brown door under the ramp.

Use the Alien Medpack on the Maian here and wait a few moments. Objective three is complete.

After the cutscene (a non-interactive cinematic the game plays automatically), exit the room and run past the ramp, protecting Elvis. Run to the spaceship.

After the conversation, you have two options: Follow Jonathan and stay behind him until he stops, then move in front of him to cover (press the cover button to crouch behind walls or objects) him as he opens the hangars to complete the final objective. Or, run in front of Jonathan BEFORE he stops to open the hangar yourself.

To open the hangar yourself: Run up the catwalk, follow the two paths, and activate both control panels.

Head back down the ramp and get on the Hover Bike. Ride through the door beneath the ramp, go right, go down the hall, go right, and follow the long hallway until it stops.

Go right down the ramp until you reach the end. Kill the guard at the end and go through the door in front of you.

In this room, veer left and go through the door on the upper-left side. Follow the hallway until it turns right, then go right.

In the next room, turn left and go through the door on the left side. Now go through the door on the left and ride outside to escape Area 51 and end mission 4.