Grindelwald wins, and takes control of America, killing many of the aurors and keeping a few as his prisoner. He singles out some (possibly Graves and Newt) for special treatment, abusing and raping them. He also has Credence, a more pampered and spoiled pet, but still far from an equal.

Grindelwald makes the survivors fuck for his entertainment, and tortures them. But slowly, Credence begins to grow closer to the others, and they start to plan an escape.
(Happy ending very welcomed but not necessary)