A lot did. I like John's trust sidearm, Micah's are really cool, and then Javier and Dutch had really great-looking weapons too imo.
Hosea's look basically the same as John's but as he doesn't have the gunslinger association, they don't seem as cool as John's. Sadie's revolver is the same colour scheme but newer and more decorated; alright, but there are better gang weapons in the game, I'd say.
