Untether ammo types for primary weapons and their pistol counterparts

right now, the rifle weapons(burst, assault), share weapon types with semi-autopistols and burst pistols. this means when you reload one, your secondary loses ammo even though you didn't use it.

at first i thought this was a bug, and reported it as such, but its consistent enough that i now believe it to be intentional, or perhaps an oversight carried over from arena royale.

if i live long enough to run out of ammo and need to swap to my secondary, my secondary should not have had ammo taken from it without having fired a shot from it.