MW4 DMZ Air Base Armory Keycard Location Guide [Confirmed]

To unlock the high-tier Air Base Armory at Chang-san in MW4 DMZ, players must secure the designated sector officer keycard from patrolling command AI to bypass perimeter security doors and access six pristine weapon lockers loaded with blueprints. According to verified reports from Game Rant, Chang-san Air Base offers one of the most reliable and low-friction extraction runs across the map. While hostile AI forces heavily garrison the perimeter runways, operator traffic remains remarkably scarce compared to volatile central drop zones. Infiltrating squads who neutralize the elite guards can systematically unlock the armory, yielding rare blueprints and high-grade schematic components essential for the 3D Printer workbench. Much like technical mission routing analyzed in our [Cyberpunk 2 Multiplayer Quests Leak: CDPR Sequel Intel [Confirmed]](/news/cyberpunk-2-multiplayer-quests-leak) report, structured extraction gameplay rewards methodical clearance over chaotic firefights. Tactical teams can reliably farm pristine loadouts, store high-durability plate carriers, and exfil through outer airfield helipads before rival extraction squads converge on late-match radiation zones.