Sombreroman
inside the research center, there is a large center core, similar to the 8 that surround the main core. all around the room is just thousands of broken cages, all of them are roughly the size of the rats, with a large control panel at the far wall.
there are also some corpses spread around, most of which torn to pieces, most likely by the rats... speaking of which, there is a few rats that are lurking in the dark corners of the room, scurrying away when spotted or shot at.