U.S.S. Discovery (tanker)
From the Metal Gear Wiki
The U.S.S. Discovery was an oil tanker used to secretly transport the first Metal Gear RAY prototype for offshore testing.
The Discovery was guarded by the Marine Corps led by Commandant Scott Dolph, who gave a speech regarding the new Metal Gear in RAY's hangar. As the tanker passed down the Hudson River, Sergei Gurlukovich's mercenary army, along with Revolver Ocelot, staged a siege of the tanker. The Russian soldiers took control of the Discovery, and Ocelot held Dolph and his men hostage below decks.
At the same time, Solid Snake infiltrated the tanker, intent on capturing photographic evidence of Metal Gear RAY's existence. He witnessed the Russian takeover, and was in the hangar when Ocelot, possessed by Liquid Snake, commandeered RAY and devastated the hangar. RAY smashed the tanker in half before diving into the water, leaving the wreck of the Discovery floating on the river.
Two years later, a decontamination facility known as Big Shell was erected to clean up the oil spill which resulted from the sinking of the Discovery. This facility was in fact designed primarily to cover up the existence of Arsenal Gear.
