Because I didn't get to it in the IC intro:

'The Pirate Ship', Black Squad's barracks building, is a square building with three floors, with a courtyard in the center of the building. First floor is mostly training spaces; lecture hall, tech labs, classrooms. Stairs at the ends of the building. The second floor is more classrooms, multimedia centers, kitchen, lounges, gym, and junior squadmates dorms, the third floor is entirely senior squadmates dorms.