Fuck MW2
And to StingingVelvet. The truth is NOT in the middle. The lag on IWNet causes all sorts of exploits. I know because I have played it on PS3. I have a 25mbps connection (Meaning if it weren't for IW.net I could be playing on servers with a 5 ping in some cases and instead I'm stuck playing P2P at 100+ ping).
The lag allows people to exploit Marathon/Commando/Lightweight and run around and knife everyone without you being able to do much about it. Granted if you get them at a distance theres a good chance they will die. But if they come around a corner and are within 20 feet. Good luck. You've got maybe a 10% chance you'll kill them. The other 90% of that time, you'll think you're putting a whole clip into them, only to die to a knife because on their end, they've already killed you and moved on.
So no, don't give me that truth is in the middle bullcrap. IW.net blows and everyone knows it.
Screw MW2 for free. Pay for BC2 and have more fun than you will with a free game. Sad but true.