Call of Duty is a constant presence within the first-person shooter genre, with a new game releasing every year. While the franchise started in fierce competition with titles like Medal of Honor and Soldier of Fortune,Call of Duty has quickly become a mainstream giant in the shooter space, featuring various beloved titles. Though the major selling point of Call of Duty is its Multiplayer modes and often stellar Zombies co-op experiences, it also offers a variety of different Campaigns.