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

Shut down air intercept radar: Immediately strafe left for cover (press the cover button to crouch behind walls or objects) behind a pillar. Wait for guards to pass, then eliminate them. Collect MagSecs, ammo, and grenades. Avoid the automatic machine gun. Proceed away from the helipad down the path. Destroy the next automatic gun with your MagSec. Continue past its remains and around the corner. Slowly approach the next machine gun on your left and destroy it. Proceed forward, turn right towards the large tower, and eliminate the two guards there using your Falcon or MagSec. Run past the tower, eliminating any guards emerging from the tunnel. If you have grenades, toss one through the hole in the fence to the left of the tunnel onto the snow to detonate mines and retrieve the Rocket Launcher on the helipad. Take the Rocket Launcher, then ascend the tower. At the top, press the red button to open the gate. Descend the tower and enter the tunnel. At the tunnel's end, deal with the guards and the machine gun to your left. Return to the helipad where you obtained the Rocket Launcher. Toss a grenade towards the cliff to detonate any remaining mines. Veer left from the helipad to find a small opening in the steel wall. Crouch and enter. Towards the end of this passage, find and take the armor. Exit the tunnel, eliminate the guard outside, and follow the path to its end. Turn right and destroy the two machine guns on the wall. Turn around, pass the hole in the wall on your right, and turn left. Proceed down the side of the wall, turn left again at the end, and destroy the machine gun on the wall above you. Turn around, descend the ladder, and enter the hole in the ground. Enter the silver door ahead, veer right, and reach the back of the room. Plant your Explosives on the Computer Panel. Quickly exit the room and ascend the ladder again. This completes the first objective.

Plant comms device on antenna: Return to the tunnel where you acquired the Rocket Launcher and follow it to the other side. Go left to find the antenna on a rock. Approach it and press the green button behind it to lower it. Equip your Comms Rider and throw it onto the antenna to complete this objective. Return to the location where you completed the first objective.

Gain entrance to hangar lift: At the top, move forward and eliminate the guard in the center of the large open area. Take the key card he drops. To the right of the guard's former position, next to the large roll-up gates, locate a key-reader on the left. Press B to activate it and open the gates. Enter and proceed up the elevator on the left. Exit the elevator and eliminate the guards using your Dragon. Be cautious of guards armed with grenades. Successfully exiting the elevator completes this objective.

Make contact with CI spy: Run to the ramp at the back of the room and ascend it. Follow the path at the top and use the elevator at the end. Exit the elevator and continue along the path until you reach another ramp. Eliminate any guards encountered. Run underneath the ramp and through the open door to meet the CI spy and conclude the first part of Mission 4.