Yapp! Use command: UnitName removeMagazine "weaponClassName"; UnitName addMagazine "weaponClassName"
Where unit name is ofcourse the name of the unit and WeaponClassName is the weapon class name.
like:
F16 removeMagazine "Epl_Aim9_6"; F16 addMagazine "Epl_Aim9_6";You'll easily find out the class name if you've been to addon making. If not ask the author of the addon or see the readme.
This command removes the old ammunition first, so you don't get multiple magazines...
I hope you understand!