[MBilal]

First You need to know only some weapon who shot are called at OnPlayerWeaponShot
Like 22,23,24,25,26,27,28,29,30,31,32,33,34,38;

You're decreasing ammo of weapons under OnPlayerWeaponShot
well some weapons shot lot of amo at time like shotgun uzi swan
mp5 you will get kicked !

UnderOnPlayerWeaponShot

i think that is better

Код:

Minigun[playerid] = GetPlayerAmmo(playerid);