This game has been out for one day, and so far the PS3 version’s trophies were broken(but now fixed)and now matchmaking is busted. Yup. You can play private matches, and games with your friends, but don’t think about matchmaking. Robert Bowling tweeted that Infinity Ward plans to have the fix out by Friday, so PS3 players can be fragging each other all weekend long.
UPDATE: Bowling says that the issues with Matchmaking are server based, and that servers are being brought online as we speak.
Via Joystiq