Mobile unit ammunition

I think the mobile units require to much ammunition. Specifically the Mobile Int Units. They require 2X the amount a normal int unit does. These are generally one shot units. I understand it being a mobile unit will mean it can be placed farther away from supply units and the resupply can take longer, but 20,800 missiles per mobile int unit is very excessive. I would like to be able to put my own amount of ammo in the units.