John McClane & Rambo Join Call of Duty: Black Ops & Warzone in May May 18, 2021 Call of Duty: Black Ops Cold War recently brought players back into the world of the 80s, but this week things will get even bigger as some major action movie stars are set to join the game. On May 20, 2021, Call of Duty: Black Ops Cold War will be hosting an 80s Action Heroes event, which will see limited-time bundles, game modes, and more rewards join Season Three Reloaded of both Black Ops Cold War and the Warzone mode in Call of Duty: Modern Warfare. In this mode, two of the biggest action heroes of the 80s, John McClane and Rambo, will be joining the fray.