Official name: Seargent Major Avery J. Johnson, Junior. My name for him: the most kick-*** guy of all time. Commom name: Seargent Major, Johnson, or Seargent. He's the man in Halo: 2 and in Halo: 3 who fights alongside Cheif, in the missions "Cairo Station", "Metropolis", (Halo: 2), "Arrival", "Sierra 117", "Crow's Nest", and "The Ark". (Halo 3)Gunnery Sergeant Avery Johnson is a SPARTAN I, and was a key person in the events that occurred during first contact on harvest, and later during the closing events of the war, in Installation 04, 05 and 00.