Campaign. WWII is the first title since the original game and Call of Duty 2: Big Red One not to feature health regeneration in the campaign. Instead, players must find health packs scattered throughout levels, or rely on their medic squadmate to provide health packs.

Stay ahead of the game!\n\n Compare that to the 3-5 hours needed to beat MW3 and the new game comes in about half as long as its predecessor. Typically, we'd expect a Call of Duty campaign to last around 7 hours. They've never been lengthy titles.