Part 27

In the ships mess, a terrorist is sitting at a table. You can switch off the light to the right of the door or use the Whistle to draw him into the dark. Alternatively, use a Diversion Camera at his feet and gas him, but be aware of the light. If he investigates the gas and doesn't fall unconscious, you may need to use close combat.

Move through the door on the opposite side of the room and follow the corridor to another door.

Enter the small room with a lightbulb. Look through the glass porthole to see a Sadono officer approach.

Crouch in the dark corner on the far right. The officer will pass by and give you his back as he tinkers with a control panel.

Grab the officer, but do not knock him out. You need him awake.

Use him as a shield and take him back down the hall to a retinal scanner on the right. Make him use it by pressing 'A' when the Use Retinal Scanner window appears.

Do not enter the room yet. Drag the officer back to the room where you grabbed him, knock him out, and hide his body in the dark corner.

Return to the encryption room. Crouch and move toward the door, which will slide open.

Slowly enter the room and move to the immediate left into an alcove. Two terrorists are present; one will leave after a brief conversation, leaving one.

Move slowly along the dark path to the right behind the remaining terrorist, staying out of the light to get behind him for an easy grab and knockout.

Access the computer at the back of the room in a narrow area.

Extract by going back the way you came. Pause at the door and peek left to see another terrorist in the hallway.

Use the Whistle button and retreat. Peek again after a few seconds; the terrorist should be gone or have his back to you.

Exit the encryption room and turn right. Around the corner is an open door with a bright spot on the floor.

Enter the exit room and climb the ladder to the left, then climb the next ladder.

When you exit the submarine, turn left and go down the walkway onto the sub's deck. Stay in the dark as a terrorist is coming up the stairs.

Let the terrorist frame himself in the doorway and shoot him. Lethal force is allowed again.

Collect any items on the crate and use the Medkit if needed. Descend the stairs to the last landing and stop when four terrorists waiting outside begin shooting through the doorway.

Go back up the stairs to the walkway next to the sub. Kneel down and shoot all four terrorists with the SC-20K; they can be seen from your position but cannot see you.

Alternative Strategy: Shoot the flammable barrels next to the four terrorists instead of shooting them directly.

Proceed down the dock past the terrorists' bodies and climb down the ladder into the waiting rubber boat.