Call of Duty has released the DMZ Worldbuilder trailer for Modern Warfare 4, the biggest look yet at the returning extraction mode. It's set in Hajin, a region where Russia, North Korea, and South Korea meet, left uninhabitable after a nuclear meltdown. North Korean forces are moving back in to secure chemical, biological, and nuclear weapons hidden in underground military facilities, and players have to get there first. A new bounty system labels players who kill without provocation as Rogues, letting others buy intel to track them down. The map also features a living world with evolving weather, roaming factions, crafting, and a hideout. This is the first part of a week-long DMZ reveal, ahead of Modern Warfare 4's October 23 launch on PS5, Xbox Series X|S, PC, and Nintendo Switch 2. #callofduty #modernwarfare4 #gaming #cod