An Xbox Game Pass subscription is not necessary to play. Call of Duty: Warzone 2.0 falls under the free-to-play standards.
Is Warzone 2 a Free to Play Battle Royale Game? Since day one, Warzone has been free-to-play, and that's the main reason why it blew up as fast as it did. Fortunately, that model continues in Warzone 2, as, from the get-go, it's totally free to download, play, and enjoy the game for as long as you so desire.
