yes, this has been suggested before, but there was never a official thread(people suggest this in any other knife-related threads), so I am making one now...
please make knife hit instantly(like halo, where you press the button and your fist goes on to your enemy's head instantly), instead of moving forward slowly(and move up a little) then pull back...
also, make the hit on the stabbing motion, not the pulling back motion(when I stab, the stabbing motion does not hit, only the pull back motion hits).