Pepperoni (or Pepper or Peppy for short) was once a quirky family dog until the bombs fell. Separated from his rear legs and family, Pepperoni was shortly found by a disgraced militia trying to survive and eventually leave the aftermath to a different part of the world. Although the dog wasn't military trained, the militia repurposed him as an ammunition carrier. Pepperoni was under their care and fitted him with small motorized heavy-duty wheels, mounted with an ammo box on top.
Everybody wondered about whether Pepperoni's demented behavior was a product of the bombing or his nature as an average Jack Russel Terrier.