So I'm actually playing Cataclysm again.
I've got a really badass guy named Cedrick who's going strong. He lives in the evac shelter next to an enormous town, and so far his tactic is to rush in, get a bunch of zombies tailing him, pop some Adderall and chew some caffeinated chewing gum, then spend three hours beating every single zombie in the immediate area to death with his entrenching tool. Then he loots to his heart's content, walks back to the shelter, and congratulates himself by drinking heavily, reading books about guns, and passing out on a bench with his emergency blanket.
Theeeen rinse and repeat.