The only obvious cheaters are the ones who don't care if they get caught.
In most games, subtle hacks like: Wall hack, no recoil, infinite ammo, no reload, no spread (i'm sure there are more) will go unnoticed if the player does not want to be overly obvious.
I would like to believe that Crytek has some anti-hack system, but after seeing (and filming) multiple guys jumping a mile high, and running .5 million miles an hour they are obviously not preventing cheating 'in game'.
Long story short, if I have to record guys cheating how do I record wall hacks or infinite ammo??
Come on Crytek lets make C3 clean, don't bow to the insecure. You guys make a great game, let's keep it that way!