Maybe there could be a shop mod where people could go and pick up a gun and it would take cash from them, using the cash mod, there could be random items you could find like "wolf meat," so you would walk into a trigger and it would sell it. Also, there could be a mod where theres a bot that only attacks you when you get close enough, and when you killed it, it would give you money or items like the "wolf meat".
(maybe not wolfs but...)
Another idea is that there is "dice rolling" where a weapon would do different damage each hit. Also, there could be a weapon that the more people or bots you kill it with, the more powerful it gets, maybe with all weapons(with a special kind of player in a minigame).
Is this possible?