[8.6]. Mission 6 - Pelagic II: Exploration (2)

Disable primary power source: After the (cut-scene) ends, turn right and go to the door next to the ramp. Open the door and perform a (headshot (a shot that lands on the enemy's head, usually an instant kill)) on the guard inside. Go through the door and turn right. At the end of the hallway, turn left and immediately eliminate the guard before they can set off the alarm. Run to the next door and eliminate the guard on the other side through the glass. Enter and deal with any remaining guards. Proceed down the hallway towards the back of the room, but enter the door to your left just as the hallway begins. Inside, go around the wall and eliminate the guard who enters. Destroy the (security camera) behind the wall. Shoot any guards below you under the grates. Equip your (XRayScanner) and locate the power generator in the center of the room. Turn off all green switches to shut down power. Descend the stairs, being cautious of a camera behind them. Shoot out the camera. Approach the large power generator near the stairs and press the green button to shut down the main power source.

Deactivate GPS and autopilot: Exit through the door you entered and turn left. Ascend the stairs and eliminate the guards at the top. Turn right and go up the next flight of stairs. You will encounter scientists; instruct them to shut it down. One scientist will draw a weapon, so eliminate them.

Activate Moon Pool lift: Go down the stairs and enter the door on your left. Turn right and eliminate the guards. Follow the long hallways until you reach a room containing water. Turn left and activate the control panel to unlock the large door nearby. Enter the newly unlocked door and proceed down the ramp. Activate the control panel at the foot of the ramp.

Rendezvous and escape with Elvis: Return to the green stairs. Turn around and go back through the door on the left. Turn right through the door. Navigate through multiple doors and guards until you reach a door where you will meet Elvis. Follow him and protect him to complete the objective. You should hear Elvis early on, indicating you are on the correct path.