Call of Duty MW4 DMZ
Air Base armory door with wheel handle and Officers Only sign

Air Base armory door with wheel handle and Officers Only sign. Credit: Call of Duty / Activision; footage: DMZMap.

Keys

Air Base Armory Card – Single Use

Updated

Reported key for the mission card for the secured air-base armory.

Characteristics

Map
Hajin
Area
Chang-san Air Base
Reported grid
B5

Where to use the key

The destination screenshot shows the Air Base armory's dark-blue bunker door, wheel handle, keypad and Officers Only sign. The reported Operation Iron Citadel route upgrades the Multi Use card at the Admin Complex No. 2 server-room terminal. Keep the two card names distinct; this picture does not establish compatibility with every Air Base reader.

Screenshots

Air Base armory door with wheel handle and Officers Only sign
Air Base armory door with wheel handle and Officers Only sign. Credit: Call of Duty / Activision

Sources: DMZMap. Checked November 4, 2026.

Image and room references: DMZMap destination report. Checked November 4, 2026.