The Call of Duty franchise has been releasing new games almost every year since 2003. Campaigns and multiplayer modes have kept the series running, with new eras and themes being introduced with every release. Warzone has burst onto the scene in recent years, but for the longest time, the main attraction of Call of Duty games was its Zombies mode.
Source：https://www.cbr.com/call-of-duty-best-zombie-maps/
