MODERN WARFARE 2 : I think modern warfare's multiplayer gaming system is a time passing type of multiplayer , but enjoyable , and with excellent visuals , but lagging network. I've played it a few times , but I've got so many lags , i got killed by my own grenade while throwing it , even though I'm having a LAN of 25MB/S , it still lags , never had such problems with other Multiplaying games. Metal Gear Solid 4 : It's a way bit boring , because there isn't so many maps , like Counter Strike has about 40 maps , but MGS4 Multiplayer has only a few , well the Original Soundtracks of MGS , ZOTE , PoliceNauts , and other japanese titles keep you comfortable in the game , but still , a way bit boring . Killzone 2 : It's a must-not-buy game , because , it will really let you down , and ofcourse it's campaign game is normal , but it's Multiplayer is very bad , so KillZone 2 is a MUST-NOT-BUY game. Not worth it. UNCHARTED 2 : The most addictive mutiplayer game ever created , not it's multiplayer only , but it's campaign too. It' will comtinuesly amaze you , everything in this Blu-Ray Disk contains is just like daimonds in a box. It is the ultimate Game eveer created on PS3 , it's multiplayer is the main thing I bought this game for. 1- No Lags 2-Many types of Multiplaying rooms 3-Many Maps Every road you take in the multiplayer Game has conciquences. Uncharted 2 shows why PS3 was created and it breaks the limits of PS3