After its construction in the late 2010s, the ship was utilized as mode of transportation, symbolism, intimidation, and defense by Ocelot during his infamous insurrection. During the final moments of the event, the ship rose from its watery covering and had a final fight with the Marine's USS Missouri. It was boarded by the veteran strike team Meryl Silverburg, Johnny Sasaki, Raiden, and Solid Snake. After fighting their way through the armies of Gekkos, Metal Gear RAY units, and Haven Troopers, Ocelot was killed, the ship was abandoned, and Outer Heaven was ripped to shreds.
Snake called the battleship "Liquid's very own Death Star", referencing the infamous planet destroying battle station with the same name from the Star Wars franchise.