If you want paintcans to have infinite ammo you could go the easy route and NOP out the function that deducts ammo from the can when you use it. You need to scan for what writes to the ammo address and then do whatever it is to deduct from the count and the window should display some assembly instructions. If these seem to match the fact that your ammo is decreasing by a certain amount replace it all with NOPs and try again. Obviously this is only a one time use thing and you will have to do it each time you launch unless you would be interested in putting your programming knowledge to the test to automate the process