Habitat Alpha is a generic UNSC term for one of the quarter sections of an Orbital Defense Platform.

Cairo Station Habitat AlphaEdit

Cairo Station Habitat Alpha was invaded by the Covenant during the boarding action but the Marine forces were unable to hold the line, so Lord Hood ordered a full Marine squad to repel the intruders. The Covenant forces were killed when John-117 fought through the area.[1]


  1. Halo 2 level Cairo Station