The game takes place in both real and fictional locations, such as the fictional Mexican city of Las Almas, Amsterdam, the Mexico United States border, Gulf of Mexico, Chicago, Urzikstan, and the new United Republic of Adal (URA), the capital of which, Al Mazrah, serves as a major locale within the campaign and ...

Without getting too detailed, the plot of Modern Warfare 2 is a globe-trotting adventure from Mexico to Amsterdam to Chicago that involves chasing terrorists and uncovering a secret plot by a rogue American general and his private military faction.