In case of its fourth installment, Modern Warfare, the developers decided to abandon that historical period in favor of modern times and to focus on the reality of contemporary armies that use a myriad of technological novelties and gadgets. The Call of Duty series normally takes us to the times of the World War II. Although it formally was preceded by Call of Duty: World at War, it follows the story and atmosphere of Call of Duty 4: Modern Warfare, developed by Story
Call of Duty: Modern Warfare 2 for PC, PS3 and X360 is the sixth installment of the well-known Call of Duty series.