The Separationist is a rebel against The Computer and its rule. The Separationist took over Level 34 of The Bunker after a brutal battle with the Guards. Their are no working security cameras on Level 34 after The Separationist smashed them. While smashing the cameras, The Separationist accidentally smashed the microfarm, destroying the only source of food on Level 34.
The Separationists want to establish a free commune and oppose The Computer's rule. It is unknown how large The Separationist are, however it is the only opposition group The Computer recognizes.