pros: The best part of this game is the co-op mode. The respawn feature is very usful. The weapon selection is diverse and enjoyable if you are good with one gun you can stick to it.The game feels very similer to halo at times. The game never makes you choose one gun for a specific situation (although some are a little better certain situations).
con: the graphics can get a little dizzying the developers were going for an almost b/w feel at times. Some of the maps are easy to get turned around in.
overall : if you are looking for a co-op game for the ps3 this one is definetly worth a try