I have 2 suggestions for the RPG and grenade launcher,
1. It would be nice if you could make the RPG have a custom bullet rocket model.
2. This would be kinda cool, after you shoot the RPG and grenades launchers projectile, would it be a good idea put put a centerprint that says, "You have no ammo, click to drop weapon" and if could you make a projectile spawn so you can pick it up and reload your RPG or grenade launcher?