Security R-01 (Earth-5875)

Security B-01 is a generic term used by the UNSC to designate one of the security stations aboard an orbital defense platforms. It is adjascent to Commons R-01.

History
Cairo Station had a Security R-01 module. During the Battle of Earth, Covenant boarding forces breached the space station and invaded the module, killing many Marines with their plasma fire and mounting Type-42 plasma cannons.