The FMS Columbia is a large sunken cargo ship off the coast of Spectacle Island. Three US Army boats tied to a buoy float above the wreck which rests deep below the sea.
The FMS Columbia itself has little of interest on the outside, but there is a door within the interior of the ship, which leads to a sealed section of the ship not completely submerged in water. Within this section of the ship, there is a hanging skeleton clutching a torn page, and a separate room behind a bulkhead door housing a desk. The desk contains the Backdoor Key, a letter, a Newspaper clipping, and the note On "The Green Line". These items allow the player to explore the locked off sections of the Green Line.