A reveal for Call of Duty: Warzone 2 and the new DMZ game mode could be happening as early as this week. Call of Duty: Warzone introduced fans of the franchise to Activision's take on a battle royale and it proved to be incredibly popular. Now, a lot of gamers are hoping that Warzone 2 can improve on the formula set by its predecessor. Already, fans have had an official sneak peek at Warzone 2 from a trailer released by Activision in September.