Hangar A-02

Hangar A-02, also known as Hanger Bay B, is a generic United Nations Space Command term for one of the two-story Longsword and Pelican hangars on the port side of an Orbital Magnetic Accelerator Cannon Platform.

Cairo Station Hanger A-02
During the First Battle of Earth, Hangar A-02 was invaded by Covenant boarders. A Covenant Boarding Craft had docked and was sending forth waves of Grunts and Elites. Marine defenders were overwhelmed and forced to retreat to the mouth of the bay, where several soldiers equipped with Battle Rifles were under suppressive fire from two Plasma Cannons manned by Gunner Grunts on the second floor. Spartan-117 then arrived from Hangar A-01, bolstering the Marine forces. The group was able to kill all of the Covenant boarders and repulse them back to their landing ship.

Trivia
Generally considered one of the harder check points in the entire game to finish on Legendary.