Security R-01 is a generic UNSC term for one of the security stations on the port side of an Orbital Defense Platform. It overlooks Commons R-01.

Cairo Station Security R-01 Edit

Cairo Station Security R-01 was the UNSC portside security station of the Cairo Station furthest from the bridge. During the Battle of Earth, Covenant boarders invaded the security station and eliminated all the Marines stationed there, but were later repulsed by John-117.