Airman (Amn) is the second lowest enlisted rank in the UNSC Air Force, immediately below Airman First Class, and above Airman Basic. The pay grade for Airman is E-2. It is equal to a Marine Private First Class, Army Private (E-2), and Navy Crewman Apprentice.

An Airman Basic is typically promoted to Airman after six months. An Airman's duties include adjusting to military life and becoming proficient in their Air Force specialty. Because of their lone stripe, an Airman is often nicknamed "Mosquito Wings," "Wingnut," or simply "One-Stripe."

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