In the guide it lists two achievements/trophies The Nuclear Family or The Nuclear Option. You can get one or the either but not both. My question is if you join one faction over the other, is there a point of no return that states doing this mission nullifies the other mission or as soon as you join this faction is nullifies the other. I would like to do both and stop when the decision arises that I have to pick " Plan A" or "Plan B" would save time. Anybody to that point that knows that?