Excerpt: SOE is essentially split into two pieces: Revolution (of course) and Khaos. Revolution is a story mode in the loosest sense of the word, because there is no real "story', instead it is wave after wave of escort, defend and attack missions. What story you do find is played out in text descriptions of each mission and in CNN-type scrolls across the bottom of the screen.
Conclusion: Because the PS2 version came out so long ago don't write SOE off as one of the bog standard cross platform ports that crop up all too regularly. Rockstar have taken the time to tweak the game and enhance it for us by adding the fun multiplayer modes, upping the framerate, increasing the art and texture quality and generally turning SOE into a much better game overall. My main concern really is that the single player part of the game gets very repetitive pretty quickly.
Pros: new Xbox only features, insane crowds and the framerate never drops, large range of weapons, multiplayer is fun, nice and violent
Cons: no system link for deathmatch, nice and violent, no driveable vehicles