The Master Chief himself, John, is joined by Linda, Kelly and Fred. While the four Spartan II super soldiers have fought together in Halo's expanded universe, Halo 5 will mark their first notable appearance together in a Halo game. They are the four members of Blue Team as it exists in the mid-26th century.
Game Informer reports that in solo play, Fred, Kelly and Linda will appear in cutscenes and follow the Master Chief's commands during the game. In co-op, each of the four players takes the role of one of the members of Blue Team, with unique loadouts for John, Kelly, Fred and Linda.
Halo 5's campaign also stars Office of Naval Intelligence agent Jameson Locke, a playable character who is tasked with tracking down the Master Chief and Blue Team. Agent Locke recruits his own squad for the mission, according to Game Informer. Called Fireteam Osiris, the group consists of Spartan IV soldiers including a returning fan favorite: Edward Buck (Nathan Fillion), the Orbital Drop Shock Trooper featured in 2009's Halo 3: ODST.
For more on Halo 5: Guardians, check out Game Informer's cover story in the July issue, the digital version of which goes live later today. Halo 5 will be released Oct. 27 exclusively on Xbox One.