Season 1 on 6 Nov: DMZ X01

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MW4 DMZ Hazard Storehouse Key

The MW4 DMZ Hazard Storehouse key opens the materials storage warehouse south of the cooling towers at Haneul Nuclear Reactor, in Haneul Nuclear Reactor. Confirmed 3 November 2026 from 2 independent sources.

GridI5 (both sources)
DoorThe materials storage warehouse south of the cooling towers at Haneul Nuclear Reactor
Where it droppedRandom loot (Dexerto).
InsideNot reported in detail.
StatusThird-party, two sources agree, 3 November 2026
HANEUL NUCLEAR REACTORGRID G4 · APPROX.
Haneul Nuclear Reactor on our schematic of Hajin, with the grid from the key’s description outlined. Our grid overlay is approximate. Open Haneul Nuclear Reactor on the interactive map.

What we know about the Hazard Storehouse

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 Haneul Nuclear Reactor and then look for the building named above. The Haneul Nuclear Reactor page lists its threat levels and named zones.

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Next in MW4 DMZ

Sources: Dexerto MW4 wiki: Hazard Storehouse (third party), DMZ Codex: Hazard Storehouse (third party). Back to all MW4 DMZ keys.

Hazard Storehouse key questions

Where is the Hazard Storehouse door in MW4 DMZ?

The materials storage warehouse south of the cooling towers at Haneul Nuclear Reactor. Grid: I5 (both sources).

Where does the Hazard Storehouse key drop?

Random loot (Dexerto).

What is inside the Hazard Storehouse?

Not reported in detail.