The newest entry offers a traditional 6 vs 6 format, as well as 12 vs 12 battles. Depending on the iteration, there are different types of online modes.
The most important game modes are the singleplayer and the online multiplayer. Some taking place in the past and others in the future. In each game you take control of a soldier during wartime, with different games varying in location and time periods. The newest entry in the series is Call of Duty: Black Ops Cold War. With newer games being released one year apart from each other.
Call of Duty (short form: CoD) is a series of first-person shooter games with 24 iterations.
