that wouldn't work.
you can change the way a weapon looks, it's RoF, and some other things. but you CANNOT change HOW it attack, you can't make an smg shoot rockets, a knife shoot bullets, or an AR shoot fire. it's NOT possible this thread is FAIL.
but i know you're a choob and didn't know, so instead of flaming like i normally i'll simply say, this isn't possible. please dont post this again.