Call of Duty: World at War has all the necessary production values of an epic first-person shooter. Visuals, sound and gameplay have been developed to a high standard, and the single-player campaign may be described as cinematic. Multiplayer is solid as ever, and whoever thought of dressing zombies as Nazis is a genius. In the wake of Modern Warfare, World of War was always going to be in for tough comparison. The fifth Call of Duty game may not net the same following or create the same level of excitement because of its well-worn historical foundation, but it is still a solid addition to the library of WWII titles. Suit up everyone, duty calls – again.