Help on backpacks capacity-

[benevolentdevil]

So the mission i'm working on uses standard OA back packs, and carry capacity sucks on the larger packs.

 I have no idea how to change what they can carry, if anyone knows can somone tell me, or point me in the right direction?

 my google searches pop up Arma3 editing, not arma2.  Someone in arma2 had to have done it cause dayz/daizy definitely changes backpack capacities.