Call of Duty’s latest video “From The Ward” is a documentary showing a behind-the-scenes look at Infinity Ward’s development of Modern Warfare 4, and one scene could be teasing a first look at the game’s DMZ map. DMZ was originally introduced with the reboot of Modern Warfare 2, bringing the elements of an extraction shooter to Call of Duty as the game’s third mode. DMZ also took place on the same maps used for Warzone, so it’s possible the map…