Well I am having huge lag problems atm too. My ping is normal most of the time, meaning 29, but it feels like I am playing with 80+ ping. Guys teleporting all over the place, animations not showing, delays and fraps lag. I get it all atm. Not sure what it is.
I have tried resetting the router, cleansing my PC, checking Hookups for internet, checking internet settings or Graphics settings, veryfying game cache and reinstalling the game. Nothing has worked so far. Also I have noticed it is only in MP, in Single Player everything is normal.
If anyone knows anything about this problem or has a suggestion as in how to fix it. Please enlighten me.
Oh and I also tried Game Booster. Didn't help.