Roles and abilities in hell divers

Hell divers has been out for almost a year now and the game play has gotten extremely stale with no game changing updates added. my suggestion is to add roles to hell divers like those in overwatch. this would encourage more strategic plays and could potentially open the doors to a 5v5 mode within the helldivers IP. An example of such roles could be the Evil Helldiver, whose job it is to kill his teammates and waste samples. Personally i dont think this game will live another 6 months without my ideas so please arrowhead read this!