The game introduces the "Theatre of War", a series of single-player and cooperative missions detailing various aspects of the Eastern Front campaign from both German and Soviet sides. Eighteen missions set in 1941 will be part of the game upon release with the missions from 1942 onward available as downloadable content. The first of these offerings is "Case Blue", a package only free to pre-ordered copies and Red Star editions of the game, featuring the Axis forces during the "Fall Blau" campaign on the Eastern Front. Later releases include Victory at Stalingrad, taking place around the city of Stalingrad during 1942, and Southern Fronts, focusing on events surrounding the spring rasputitsa in 1943.