The Campaign spans fifteen missions where players bounce back and forth throughout the narrative as Chief and Locke as they lead their respective teams. Their mission: Hunt down the Blue Team and bring them back home. Cue Spartan Locke and Fireteam Osiris, a group of ONI-led Spartan IVs. Set eight months after the events of Halo 4’s Spartan Ops, Master Chief and Blue Team have gone AWOL. Halo 5: Guardians has finally arrived and is nothing short of epic. Unobtainable/glitched achievements: None Does difficulty affect achievements: Yes Minimum number of playthroughs needed: 2 Approximate amount of time to 1000 : 35-45 Hours