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DMZ CODEX · HAJIN EXCLUSION ZONE UPDATED 17 OCT 2026 DMZ EARLY ACCESS · OCT 20
Codex / How DMZ works / Radiation storm Updated 17 Oct 2026
Mechanic

Radiation storm

Radiation spreads across Hajin during a deployment. A HUD timer shows when the radiation storm will intensify; as it worsens, head for an exfil or risk being caught somewhere too hostile to survive.

Good to know

  • The Tac-Map shows the spreading radiation. "Time Remaining" on the HUD indicates when the radiation storm will intensify across Hajin.
  • The radiation starts at the Haneul Nuclear Reactor in the northeast and spreads until it covers the whole map at the end of the match timer.
  • In official footage the team leader radios "extraction is no longer possible in that area" as conditions close in.

Guides that cover this

GuideMW4 DMZ beginner guide: how your first deployments work GuideMW4 DMZ exfil guide: every way out of Hajin

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