Alex will discuss WWII history as well as the game's realism. Call of Duty: WWII is part of a multinational franchise that has sold over 400 million copies. This is one of the more realistic games, and it's also rather enjoyable. However, there was a significant disadvantage: the player base did not love the game's mechanics, and people began to lose interest. Many people bought it for the multiplayer mode rather than the campaign, although it was the best campaign in years.