Single - Player campaign scenario follows the real chronology of the battle starting with Operation Uranus on November 19th, 1942 and continues to the complete liberation of the city on February 2nd, 1943 (onrpg.com)
I finished the campaign mode in a few hours, and while the challenge modes give the game a little bit of extra life, they're basically just the same campaign scenarios with a few twists to them. (playstationlifestyle.net)