[Killa[DGZ]]

Well as you're already using OPU, you could just check for a weapon change in OPU, an if there 'is indeed' a change in weapon you could then call your external function to check if the new weapon is stored in the enumerator and ban/kick if not.

As already stated, resetting and setting the weapons continuously will have no effect.. you're better off to just ban/kick offenders as minigun user can kill a whole bunch of players in 3 seconds.