3 days.

Well halo 4 is an AMAZING game but seriously, the progression system from SR-1 to SR-50 takes 3 days in game time… I would say at least it should be 7 days game time but whatever specializations include it will take around 11 days game time to get SR-130 and once we get there competitive ranking will be out, but please make the game last till then by increasing the time of ranking your SR