Gus gets hit in the leg with several shotgun pellets when John ambushes the bikers, causing him to limp. When he sneaks into the ghost town, he is seen running with no impediment. When he is on top of the windmill, the wound reappears.
Bill isn't wearing the marshal's badge on his vest when the Iron Bandits take over the ghost town. Later, when he is attempting to bargain with King, he is.