AMMO REQUIREMENT SCRIPT FOR VX

I've found some ammo requirement scripts for VX but they don't seem to do what I need which is to make it so that you can't attack unless you have ammo (unless you set it to have infinite ammo of that type) and also to be able to use different types of ammo, and set it to which gun can use it. Also if a gun can use multiple types I would like it if you could choose which type you want to use it battle or you can choose in the menu.

So if there is a script out there that can do that let me know, thanks. ^^