Call of Duty: World at War is considered the hardest game in the series, with intense enemy 🗝 presence, constant fire, and challenging missions that make it the ultimate experience in terms of difficulty.

Heart of the Reich is the most challenging mission 🗝 from the most difficult Call of Duty campaign, World at War. This mission, especially on the Veteran difficulty, is a 🗝 nightmare for many. The Russians have fought back the Germans and are taking the fight back to the Germans, the 🗝 heart of the Reich.