On October 29, 2003, the world was introduced to Call of Duty. Taking the form of a World War 2 shooter, this initial entry in the franchise was, like several other games in the series, a critical darling. Praised for everything from its action-packed campaign to its visuals, as well as an ambitious campaign that highlighted each member of The Allies, there was plenty to love about the game. However, while concepts like a campaign offering multiple perspectives and a leader figure named Captain Price stuck around, many other features from the original Call of Duty did not. While it may seem odd to see concepts from a Game of the Year-winning title left in the past, it is Call of Duty’s willingness to shake things up that has allowed it to endure.