MW4 DMZ Air Base Access Card - Multi Use
The MW4 DMZ Air Base Access Card - Multi Use key opens the Admin Complex No. 2 Server Room at Chang-san Air Base, in Chang-san Air Base. Confirmed 3 November 2026 from 2 independent sources.
| Grid | B5 (Dexerto) |
|---|---|
| Door | The Admin Complex No. 2 Server Room at Chang-san Air Base |
| Where it dropped | Reward from the Operation Iron Citadel story mission; Dexerto says it lies on an office desk in one of the mission’s target buildings. |
| Inside | At the Server Room terminal the card can be upgraded into a single-use Armory Card for the air base armory. |
| Status | Third-party, two sources agree, 3 November 2026 |
What we know about the Air Base Access Card - Multi Use
- Rarity: Epic (both sources).
- See the Operation Iron Citadel walkthrough for the full route.
How to reach it
Read the grid on the key’s own description first, then type it into the MW4 DMZ map grid search. Our grid overlay is still approximate, so use it to get to the right part of Chang-san Air Base and then look for the building named above. The Chang-san Air Base page lists its threat levels and named zones.
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