The Protectors seal off the fluid sources and explore the interior of the Fragment.
Of course, there's not much to explore, considering the entire interior of the Fragment consists of 32 corridors, 1 reactor, 1 control room, 1 FTL drive, and 1 crew bunk.
What’s the crew bunk for anyways? Why would an AI’s body have room for crew?
Finding the control room, Lt. Stapleton disables the corruption signal transmitter
One of the soldiers disables the FTL drive.