As just one of dozens of entries that have been released near-annually at this point, Call of Duty: Warzone 2.0 is a standalone add-on for Modern Warfare 2 and is the franchise's third foray into the free-to-play realm.
The current Warzone 2 explained\n\n Simply put, it is available as a non-paid Call of Duty game that any player can download and enjoy. It doesn't require the purchase of the base title, which is Modern Warfare II.