I still think my own mind is the best weapon. When I catch you looking the wrong way, then you will understand, sort of.
However, the smaller maps, the restricted avenue's of approach, and the camp mentality of this game does make it tougher to sneak up on someone, but not impossible.
I miss Zipper and big maps in a big way. 16 vs 16 wars on a big map, the ability to force your opponents to actually "think" instead of hiding like a 10 year old school girl and waiting for the next slob to run by.
I would probably have more knife kills than anything else if the knife was 100% effective. But I don't trust the knife, let me down too many times. I'll cap that ass instead.