OP7US trainer making

I am trying to make a simply infinite ammo trainer for OP7. I have a UCE, and have been trying to find the address (even dynamic), and I cant find it. I know this has been done before. Can someone tell my what type of address it is or any weird values it has? ex. float, double, 4byte, 8byte, and is 30 ammo = like 23214231253 or something weird please say. Thanks for the help.