COD:Modern Warfare 2 Prestige edition
/end thread.
A game which isn't out and not coming out on PS2? I hope that was meant to be a joke, otherwise it is just a straight up pointless post.
Back on subject, Timesplitters is a pretty safe bet, bots for split screen, split screen online capability if people still play, plenty of multiplayer options like downloading other peoples levels (I used to have a couple of top 10 highest rated mini missions from my Splitter Cell series, on my old Ea user name, themaster744 IIRC). The controls are fluent and easy, physics are great, guns are plentiful and the single player is comical and enjoyable.
The Socom series provides some potential if there's still an active online community, Socom 3 (or Combined Assault) is the best bet for online use. Otherwise the older Socoms, 1 and 2, are generally better for single player I think, they were just a bit more challenging I think and more tactical. However there's not much replay value to be found.
The COD series is of course pretty well sorted to, I personally enjoyed the first the most of the PS2 generation however despite many COD fanboys around shelling Medal of Honour, there is a gem to be had. MOH: Frontline was a fantastic FPS, it provided one of the best missions ever seen in an FPS, perhaps not in gameplay terms but for it's age and console, the Normandy landings were the most epic of beginnings for a WW2 game. There were also some other notable missions, such as Arnhem Nights focusing on Market Garden.
Other notable games, Half Life, Red Faction and the previously mentioned Black are also well received by most.