You press triangle, and it will put your throwing knife away.
Sorry Bro There Is No Knife In mw3.
Yes MW3 has a PS3 version of the game
No there is not
Play more and read the wiki on MW3
Go to Equipment in the create a class menu, you should unlock the Throwing Knife at lvl 7, just put Throwing Knife on as your Equipment, then, when in game, just push the R2 button to throw it. (R2 is the button to throw it on Ps3, i'm not sure what button it is for PC or Xbox)
With a Printer.
no u need 6 ps3 games
Yes.
That is impossible
Yes
Its already out i believe
November 8th, 2011