Down the stairs is the reactor control room, with a small radio room on the left side ahead.
Upon entering the ship, the first room the Sole Survivor comes to is the bridge where Zao is located.
The Yangtze has three large propellers, with one on each side and a third under the reactor control room, as well as a smaller propeller at the rear of the submarine with the rudder. Upon discovery, the quest Here There Be Monsters will automatically be started if it hasn't been received already from Donny Kowalski near the Shamrock Taphouse. The submarine is not marked on the map until the Sole Survivor swims out to it. The damage caused a reactor leak that immobilized the sub and ultimately killed or ghoulified the crew of approximately two dozen men, of which only Zao retained his sanity. Shortly after firing its strategic missiles, the submarine struck a mine that severely damaged the reactor and forced the vessel to seek shelter in Boston Harbor. All but one of the missiles were successfully launched.
When the Great War began, the Yangtze's captain obeyed his orders to fire the submarine's strategic nuclear weapons at their targets. Sometime before the Great War, the Yangtze was on deployment with a payload of six strategic nuclear SLBMs and an unknown number of tactical nuclear missiles and torpedoes.
