Apologies to my current game projects, but this inspires me to some Rifts-style gonzo-ism:
We started out in the ruins of some bar(Turns out we wrecked it in our alcohol/cocaine stupor.) with a massively bloated Plague Marine named Fatarse holding a shotgun at us. We had to go wreck a huge Nightclub named "Intense" a few blocks over so Fatarse had no competition when he would rebuild. And we had explosive slave collars so we had to follow his demands.
What followed was perhaps the strangest three sessions of my life, it involved Terminator Bouncers, "Cavity Inspection", Noise Marine bands, cocaine and cocaine accessories.