I suggest you go with either walkies weapons or runnies weapons.
I don't think having a dm with fire weapons is going to be best choice since they're stunning weapons which means it would take forever to kill someone.
Walkies weapons:
M4, AK47, Shotgun, Combat shotgun, Sniper Rifle, Country Rifle, Desert Eagle, Silenced 9mm and MP5
Runnies weapons:
Uzi, tec9, Sawnoff shotgun and 9mm