I tried to get into COD4 multiplayer (IMO the single player is bad ass), but for people like me that only want to dedicate about 30 minutes a day to the game the learning curve is seriously steep. Knowing all the map capture points, spawn points, sniping areas, advantage spots, etc takes a while to learn. This is an amazing aspect of the game for people that have time to learn (one of my friends that just graduated plays the game for all day and absolutely loved the learning curve). But even if I picked up a PS3 I don't think I'd have the time required to get into COD