Unfortunately, if they were to add another oGCD, the rotation would just be to find space for it in your OH+WF like every other oGCD. It's just how the job is played, every minute you throw everything you have into your OH+WF, then for like 50 seconds, you refresh Hot Shot, get your GB back up, get your Turret back up, and manage your Heat with your ammo so that you can immediately go into your next OH+WF. Been kinda backing off MCH for that reason as I find it kinda dull, but I am hoping 4.1 changes fix that.