MW4 DMZ Air Base Armory Card - Single Use
Unconfirmed: reported by the DMZ Codex fan database, read 3 November 2026. Check the grid on the key’s own description in game.
The MW4 DMZ Air Base Armory Card - Single Use key reportedly opens the Chang-san Air Base armory; made by upgrading the Multi Use access card at the Admin Complex Server Room terminal during Operation Iron Citadel, in Chang-san Air Base, grid B5. Only one source has reported it so far, so treat this page as a lead until a second source or a matching player report agrees.
| Reported grid | B5 |
|---|---|
| Area | Chang-san Air Base (Western Hajin, former North Korean territory) |
| Reportedly opens | The Chang-san Air Base armory; made by upgrading the Multi Use access card at the Admin Complex Server Room terminal during Operation Iron Citadel |
| Rarity | Legendary (reported) |
| How to get it | Reported as made during Operation Iron Citadel, by upgrading the Air Base Access Card - Multi Use at the Admin Complex Server Room terminal. |
| Area threat | Up to Extreme (Chang-san Air Base, official rating) |
| Status | Unconfirmed, one source |
Where the Air Base Armory Card - Single Use is
A fortified North Korean air base cut into a granite hillside, with a runway, helipad, hospital and barracks on the surface and an Extreme-threat bunker network underneath.
The report places the Air Base Armory Card - Single Use door in Chang-san Air Base at grid B5: the Chang-san Air Base armory; made by upgrading the Multi Use access card at the Admin Complex Server Room terminal during Operation Iron Citadel. Our MW4 DMZ map marks Chang-san Air Base itself, not this door, because the door has not been confirmed. Our grid overlay is approximate, and some reported grids fall outside it, so trust the grid printed on the key in your backpack.
Before you go to Chang-san Air Base
- Chang-san Air Base is rated up to Extreme threat by Activision. Bring a full squad and plates, and plan the exfil before you open the door.
- Come in from the wooded high ground to the south, not the eastern cliffs.
- The bunker is Extreme threat: go in with a full squad and a plan to break contact.
Help confirm the Air Base Armory Card - Single Use
Opened this door? Send a screenshot of the key description with its grid, plus one of the door or the room. Two matching reports move the key to the confirmed list, with a map marker and your nickname in the update log.