I have been playing call of duty since the first one came out and I have played every single version they produced. Every single one of them is great and breath-taking. Call of Duty 4 is one of my favorites between all the other call of duty series. I got the limited collectors edtion and I finished the game in less than 24hours. This is both good and bad actually. The game is so moving that you dont want to quit to do anything else but keep-on playing, and also it means that its not a very long game. But no matter what I highly reccommend this game to everybody who enjoys this kind of shooting games and loved the other call of duty series. This game is a "Must have" kind of game !!