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MW4 DMZ key / Rare

Militia Arms Depot

The Militia Arms Depot is used at Gangbyeon Apartment B, Hajin River Heights (grid G7). Armory in Gangbyeon Apartment B. Its floor is disputed: the bottom floor or the second floor, so check both.

Rare2+ guides agree

G7 Gangbyeon Apartment B, Hajin River Heights

Door
Armory in Gangbyeon Apartment B. Its floor is disputed: the bottom floor or the second floor, so check both.
Video route
Go into the underground parking, take the stairs up and turn left into the kitchen to find the Gangbyeon Apartment B key. Open Apartment B, then go up to the second floor: the armory is behind a white door in a teal and white corridor. Player report, not checked by the guides.
Inside
Not itemised yet.
Get the key
Found as loot One was found in a duffel bag in The Citadel East Wing.

Check the door name in game: a different room has a similar name.

Other keys in Hajin River Heights

Data updated 2026-11-02. Sources: Community COD Central — MW4 DMZ keys · Community DMZ Codex — keys and loot rooms · Guide AllThings.How — which door each key opens · Community mw4map.com — key locations · Community dmzmap.com — key locations and locked rooms · Community 哆啦A东_DMZ无人区 — key room spots and routes (Bilibili video series)