Ammo consumption change ability for sitems (if possible)

A feature that allows us to give weapons how much ammo they use as i think that this could make some unique weapons espacially for zombies, in pvp i wouldnt find much use for this since u can get ammo easily with /i ,tho i would love to see this work as it can make unique zombies weapons

what’s supported by sitems is the only modifications that are straightforwardly possible. This would require something else entirely. There’s better alternative such as making the ammo more expensive