A random online person creates a forum account specifically to necro this thread (against his better judgement), as the Master from Fallout - newly merged with the Vault Dweller that sided with him proceeds to march his Super Mutant army to the locally appearing Guardian of Forever, and seeds the multiverse with Super Mutants. Your choices are now: Super Mutants, Super Mutant anime 'girls' (they're androgynous, so... then again it's anime, so there's almost certainly something feature that as it is....) or Kerbals (the relationship between them and Super Mutants seems akin to Wookies/Ewoks, now that I think of it.)
The Kerbals, recognizing the Master's army as long lost kin of sorts, turn their rocket technology into weapons of war, and stream in endless hoards through the newly opened dimensional gateway, subduing and subjugating the rest of the multiverse until...
I, uncharacteristically, necro a thread - what's the worst that could happen?