Do what I said earlier to clear it, then add your own weapons by typing this after the other commands in the INIT field -> this addWeaponCargo ["weapon-name",X]; this addMagazineCargo ["magazine-name",X]; <-
Where X = number of mags/guns to be placed in.
Daniel J Bryant
PS: Make sure you do that after the other part, else you'll just remove everything you just put in.