[8.1]. Mission 1 - dataDyne Central: Extraction

Access the Foyer Elevator: Equip Night Vision Goggles. Eliminate the guard behind the desk with a headshot. Find and open the hidden door to the right of the desk, eliminate the guard inside, grab ammo. Proceed right, eliminate two more guards. Navigate the main room, eliminating all encountered guards until you reach stairs with guards at the top. Eliminate these guards, ascend the stairs, turn left, and enter the elevator to complete the first objective.

Defeat Cassandra's Body Guards: As the elevator ascends, remove Night Vision Goggles. Exit the elevator, turn right, and proceed around the corner to eliminate a guard. Enter the doors behind him and follow the curving hallway to confront and eliminate two of Cassandra's body guards. Take their shotguns and cartridges. Proceed through the single door at the end of the hallway and eliminate another body guard. Backtrack to the first elevator (not the one previously used) and ascend one floor. Exit the elevator, turn right, and proceed around the corner to eliminate helmeted guards. Enter the door to the left of these guards. Navigate through the inner office, turn left, and pass through the hidden sliding door. Proceed through the next unlocked door to eliminate another body guard. Continue through the next door. Walk forward, locate the elevator on your left, but ignore it for now. Proceed straight ahead to clear the room of any remaining body guards. Return to the elevator and use the door next to it. Ascend the stairs to the next floor. Turn right, eliminate the guard arguing with scientists, and allow the scientists to escape. Take the Rocket Launcher. Turn right and use the door near where you acquired the Rocket Launcher. Take the stairs to the top floor and proceed through the steel grate. Once outside, eliminate the remaining bodyguards to complete the second objective.

Rendezvous at the Helipad: Navigate the ramps all the way back to the helipad. Upon reaching the helipad, the third and final objective for Mission 1 will be completed.