Halo 5: Guardians is a 2015 first-person shooter video game developed by 343 Industries, published by Microsoft Studios, and released worldwide for the Xbox One game console on October 27, 2015. The plot follows two fireteams of human supersoldiers: Blue Team, led by Master Chief, and Fire team Osiris, led by Spartan Locke. When Blue Team goes absent without leave to track down the artificial intelligence construct Cortana, Master Chief's loyalty is called into question and Fire team Osiris is sent to retrieve him. Halo 5: Guardians is a first-person shooter, with players experiencing most gameplay through the eyes of a playable character. The camera switches to a third-person view for some cinematics and gameplay sequences.The game preserves many of the core features of the Halo franchise's gameplay experience. Players step into the powered armor of a Spartan. The game modifies character movement and abilities compared to previous games. New to the series are "Spartan Abilities", replacing the Armor Abilities of previous games. Players are equipped with thruster packs they can use to dash in any direction, sprint, charge, slide across surfaces, and clamber up ledges. A "ground pound" sends an airborne player crashing to the ground, dealing damage to enemies in the landing zone. Old weap0ns return alongside new ones, sometimes with altered mechanics. All fire arms can be zoomed in, a capability restricted to specific weap0ns in previous games. When zoomed in while airborne, the player can hover off the ground for a short period.