As well as introducing a swap to a best of three format, Gambit Prime will now focus more on its specific roles. To catch you up, Reapers will clear waves of enemies, while Collectors will be kept busy gathering motes and blocking enemies. For PvP, you’ll need Invaders to attack your enemies, while Sentries will help keep you team safe.
Each of those classes will gets access to its own armour pieces which offer their own bonuses. Reaper armour, for example, will weaken high-value targets and reward you with special ammo for multi-kills. Sentries, however, will benefit from the ability to mark enemies, and buff their allies, while Invaders will get a damage bonus for killing guardians, and get improved overshields and more ammo during their invasions.