An Arsenal Gear-class battleship hidden at Shadow Moses Island. After Liquid Ocelot activates the Guns of the Patriots, he steals Outer Haven from the Patriots and outfits it with a rail gun from Metal Gear REX. It is approximately 630 meters long, and its massive deck contains a series of bridges aligned like skyscrapers. It is also clad in OctoCamo, allowing the entire ship to be camouflaged. It has submersible capabilities, and its top speed is reportedly over 40 knots. It is powered by a molten metal cold fusion nuclear reactor. Virtually invincible in coastal waters. Housed within its GW server room is the GW server transplanted from Arsenal Gear.