dont worry nouser i get the game thing.. i ask a simple question and people flame the hell out of me for no reason lol.. but while were on the knife topic the knife shoots slow, it wouldnt make your p90 shoot 30 rounds a second it shoots each time you swing, Knife mods are best used on single shot weapons to reduce recoil, Snipers, Shotguns, Explosives
More then anything i want to see moded into a knife would be a double barrel shotty. the knife seems to have better range.. no recoil, no reload.. just per awesomenenss i admire who ever made the first knife mod ^.^