I've bitched about lag before in this thread, but I'll throw my two cents in again. I've got 30Mbps down, 4Mbps up, 13-19ms ping, wired connection, all xbox ports forwarded, router "optimized for gaming", xbox MAC address set to highest priority, an open NAT, live in a major US city, and the game set to "local only". I play mercenary TDM most of the time. And yet all that, lag has been a huge issue since the game launched. Most of the time it's up to a full second of discrepancy, but it can occasionally get worse, like up to ~1.5 seconds. It's super frustrating dying to so many engagements that you would have survived if not for the lag; encounters where you get the drop on a guy yet still suffer a death because most of your shots didn't count. I don't understand. My connection settings have to be better than at least 80% of people who play. Even if the problem is with Treyarch's net code, I don't get why I'm getting the short end of the stick. I'm jealous of people with minimal lag issues. On rare occasion I get the connection working in my favor, and I get a taste of what that's like. :/