Commons B-01 (Earth-5875)

Commons B-01, also named Commons Blue, is a generic term used by the UNSC for one of modules in the port section of orbital defense platforms. The room is rectangular, having three elevated "islands" spread across it. It is adjascent to Security B-01.

History
Cairo Station had a Commons Blue. During the Battle of Earth, Covenant boarding forces breached the space station and invaded the module, killing many Marines with their plasma fire. While John-117 was able to arrive on the area, all Marines had been killed. He later had to pass multiple lances of unggoy and sangheili soldiers to proceed.