I don't know why but when I check up my Connection Status through Network Settings menu on my PS3, it says NAT Type: Type 2, which actually is OPEN........(Also in Black Ops and Modern Warfare 2 it says OPEN) BUT when I am in the Crysis 2 Multiplayer menu it says in the down left corner NAT: MODERATE, and I think that it does affect my PS3 system when it tries to connect to a friendly squad or a multiplayer match because I can rarely find somebody to play.
And something else which maybe have something to do with the multiplayer matches:
I have realized that in every match I have played, I the game have NOT LAGGED once (The only problem I had was 1 MIGRATING MATCH), and I thinked that the cause of NOT FINDING ANYONE to play, it's because the Matchmaking servers try to connect players to matches that will have players, close to each other for a Perfect CRYWAR. Think of that.....