Game Informer's have updated us with a Halo 5 July cover art and they reveal more about the role of Blue Team in the Guardians' campaign.
In Halo 5 you will find Blue Team will have a major role within campaign, allowing four-player cooperative gameplay.
The Chief, along with Linda, Fred, and Kelly, will all have their own unique loadouts suited to their playstyle and will all appear in cut scenes throughout game.
Then you have the other side of the story with Jameson Locke and his own personal Fireteam Osiris.
They have been given the mission of finding Master Chief and Blue Team after they've been declared AWOL by the military. Both stories will be present throughout Halo 5: Guardians' campaign, with Osiris sporting slightly more advanced tech than the Chief and his Spartan team mates.