“Dark Water” is the twelfth mission in Call of Duty: Modern Warfare II single-player campaign. During this mission, you will board an oil rig to disarm one of the missiles Hassan is planning to use.
This Dark Water walkthrough explains all the tasks you need to complete this mission.
Move with your team and go through the door to Graves’ right.
There are two enemies behind the door right in front of you, the one that leads to a red room, so be careful.
Exit the red room and keep moving. Go up the stairs with the rest of the team and neutralize any enemies you encounter.
Keep moving with the team and clearing areas until you guys get to where the blue container is. Investigate it only to see it is empty, so the controls to the missile must be on the ship.
Move right and use the rope to get down to a boat that will take you guys to the main ship.
Once you board the main boat, you will need to clear the area. The problem is that the tides are strong, and the containers on the deck wobble with the ship.
Avoid getting crushed by the containers while cleaning the area from enemies and pushing forward.
A good tip is to use the red structures to the sides of the boat to crouch and deal with enemies from there, as these structures will keep you safe from the containers.
Keep moving forward until you reach the deck’s other side and enter the structure to your right.
Clear the first floor and go up the stairs with Graves. Secure the deck, go upstairs to plant a C4 on the door, step back so the blast doesn’t harm you, and head inside.
Move with your team and clear the area. Head outside through the door in the hallway.
Go upstairs to get to the second deck. Clear the second deck and head inside the structure to clear that area as well.
Head upstairs to access the bridge and kill any enemies you see. Once the bridge is safe, walk over to the missile control system (it’s the brown briefcase lying on the ship’s control panel).
You need to manually detonate the missile before it reaches its target. To do that, open the briefcase and activate the diagnostic mode by pressing the CLR and Mode keys simultaneously.
Next, give Graves the last digit on row two, column one, which is the letter C. Finally, hit the EXE key to finish the job. The missile will launch, ending the mission.
Dark Water is the twelveth mission featured in Call of Duty: Modern Warfare II.