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MW4 DMZ key / Uncommon

Mill Explosives Lab

The Mill Explosives Lab is used at Rice Mill, Imjin Farmland (grid D8). Top floor on the south side of the Rice Mill's main building. The door is not locked: you can walk in without the key, so keep the key for something else.

UncommonOne guide only

D8 Rice Mill, Imjin Farmland

Door
Top floor on the south side of the Rice Mill's main building. The door is not locked: you can walk in without the key, so keep the key for something else.
Inside
Not documented yet.
Get the key
Found as loot Can be on a desk in the mill control room.

Player report: the lab door was found unlocked. If it shows LOCKED in your match, the key opens it.

Other keys in Imjin Farmland

Data updated 2026-11-02. Sources: Community COD Central — MW4 DMZ keys · Community DMZ Codex — keys and loot rooms · Community dmzmap.com — key locations and locked rooms