The call of duty series has been a WWII shooter to date. The previous games were intense to say the least..And were a real blast. cod4 is a different step for the COD series as it takes place in modern time. the plot for cod 4 centers around a group of ultranationalist leaders as they take control of the middle east. it is your job to run all over europe and the middle east in order to solve this crisis. The story gets confusing at parts but is explained more in depth as you go on which connects the dots in your mind. The campaign is action packed and intense and playing on veteren difficulty will make the most experienced players cry at some parts. The multiplayer for cod 4 is the thing that makes it stand out in the world of generic shooters. The class based system coupled with all the unique upgrades make the multiplayer very unique and individual to your playing style. The graphics and sound in cod4 are the best they have ever been and they really make u feel like your getting shot at through your tv. Overall cod4 is a must own for shooter fans and a must play for any xbox owner.