Ammo systems for RM2k3

[Tensu]

I'm working on a Front Mission tribute RPg and have gone over several ammo system tutorials, but none of them have helped me so far. If anyone can take a basic ammo system like from Final fantasy 4 and make it easier to understand, that would be greatly apreciated.

[Falcon]

You need to give us some damn information, not everyone here has played Final Fantasy 4 or Front Mission.

[Tensu]

creating an ammo system where say a bow or gun is in one hand and arrows or bullets are in the the other. The main weapon has a base attack, and the ammo for htat weapon has it's own attack and is used up with each attack.