 Halo 5 : Guardians , the sequel to Halo 4 , was released for the Xbox One on October 27 , 2015 . The game takes place on many different worlds , mainly the Covenant 's , and will revolve around Spartan Locke attempting to hunt down Master Chief . This will be the first game in the Halo series where players switch between two teams in Campaign at certain times : Master Chief 's team , consisting of the Spartans in the Blue team , and Spartan Locke 's team called Fireteam Osiris , consisting of fellow Spartans such as Buck from Halo 3 : ODST . 
