As for me I have a good internet connection and I have no problem with FPS or Internet lag on MW2. Same goes for BO though it is really boring. And I have played quite a few FPS's in my lifetime (14 years xD). Started 1.6 some time ago then went to Source and then CoD. I enjoy MW2 more than CoD4 now as I've played way too much because of Promod team.