First off, a Bayonet. I would like a bayonet that would shoot from far away, but if a player was infront of you, it would stab them. I have no idea if this is possible or not.
Second, a dagger/throwing knife. This is the same concept, but a different weapon. If a player is in front of you, you will slash them with a dagger. If a player is not infront of you, you will throw a dagger. Once again I don't know if this is possible.
Lastly, a Buck AI. I would really like a buck AI because it would be great for hunting servers. Or maybe survival servers where you need to get food and you could kill a buck for food.