Precision & Knife idea

Ok, does anyone else seem to not undertsand why you still die when you duck out from fire? Like this seems to happen EVERYTIME. Why does it seem that bullets are turning around corners? Should tighten this game up a tad make this more interesting.. Id like to be able to protect myself from fire and pop out own and duck out again.

Anyways... KNIFES

So i was thinking... what about blood stained knifes? Who wouldnt want a bloody red stained knife from cutting up everybody.

Ok this is how it works:
-applies to the knife only(no battle axes or noob shuvels)
-red increases on the blade with more kills. id say around 1000 to 1500 blade is fully red
-100 kills = a shade of red, 200 kills = darker red and so on...
-red blades are perm, its skill based. not buyable


just something to make knifing more fun, what do you guys think?