I certainly didn't play it as much as I thought I would, and the matchmaking seriously put me down. I just can't be bothered to play versus with high ping, and there are less dedicated servers here in Brazil than DoD:Source. it doesn't help that coop is the fad of the fads, even with the AI director. overall I think it's taking TOO LONG for them to release the goddamn SDK, it was something that should be out with the game.
"To support the SDK, we are extending the matchmaking system to allow for third party campaigns. We will be adding extra features so players will be able to find dedicated servers running the campaigns they have installed. They will also be able to see friends playing third party campaigns, and be directed to download them as necessary. Another major feature we are planning to add to the matchmaking system at a future date is team-based Versus matching. This will allow two teams of four to locate each other and compete in a Versus match.
We are also revamping our player matching based on skill level. Currently the system tries to match people with the same skill level and best pings together. We will be revisiting this system to tweak it based on data we have collected."
http://www.shacknews.com/onearticle.x/57987
I wonder what prevented them from including it... 6 months ago? 
the words above were backed by NUCLEAR WEAPONS!
