The nightfall gives you an EXP boost until the weekly reset on Tuesday night at 8pm. Therefore when it resets at the start of the week we encourage the group to do it first. We want teams of 2 to complete it and we want everyone to altenate between the members of G.E so you can help each other out. Doing the Nightfall in pairs means that you and your partner must rely on each other to complete it. If you both die you will go back to orbit..... Cheers khuntz