Its glitched a little bit for me a few times. Like, i'll be right next to somebody and knife them and it will go right through them. That starts to annoy me.
i make 1 nuke with knife xDD and i play too with trhowing knife i had
MP5k silenced, USP.45 with tactical knife
and the perks are
maraton PRO
Lightweilgth PRO
Commando PRO
Painkiller
and thats it for more information add Niki360 for ps3