Every game has Lag, some have it worse than others. Uncharted 3 is a retail release and the lag is bad but Crysis 3 is a beta. Not good enough ND.
Beta is not a good excuses, Some betas have flawless connection like GowA and if I remember correctly UC3's beta had almost no lag.
Try the Crysis 3 beta. Its consistently inconsistent. Game freezes. 1 shot smg deaths. Unexplained deaths. Mic issues. Lobby issues. Replays look TOTALLY different from what happened. I feel sorry for anyone who buys that game.
Can't wait to go back to Uncharted tonight
It's a beta. U3 has been out for a year. Besides, It isn't laggy. I got a quickscope airborne headshot on the C3 beta today. There was no lag whatsoever.