DMZ Key Map

MW4 DMZ Key Map & Key Finder (Hajin)

Last verified · Game build: launch

Looted a key in DMZ? Type its name or grid (like G6) to see where the door is, how dangerous the area is and whether the room is worth the trip. Every entry shows its source and when we last checked it.

Launches 2026-10-23T04:00:00Z

What's new

What you can do here

  • Key Finder: search every reported Hajin key by name, POI, grid, threat level or how you get it.
  • Hajin map lookup: enter a grid to see which POIs and keys sit there, with threat levels for all 13 major POIs.
  • Traits: every trait Activision has listed, our S to C tier list and three ready-made builds.
  • Best settings for PC and PS5.
  • Exfil guide and Missions, Orders & bosses.

How we label every entry

LabelWhat it means
VerifiedPublished by Activision, checked by us, or clearly shown in a linked video
ReportedOnly community sites, press or players have said it so far. Treat it as a lead
UnverifiedA lead, a placeholder, or sources that disagree

Launch week

DMZ launches with Modern Warfare 4 on October 23, 2026 at 04:00 UTC; early access opened on October 20. Many doors, grids and keypad codes can only be confirmed in the full game, so expect frequent updates during the first week. Check Updates for what changed.

Found a door or spotted a mistake? Use the Report an error button on any page. Accepted tips get a "Thanks @name" credit if you leave a name.

FAQ

What do keys do in MW4 DMZ?

Keys are loot items that open special locked rooms in Hajin. Each key's description includes a map grid, such as D7, which tells you which part of the map the door is in.

How do I use the Key Finder?

Type the key's name or the grid from its description. If it matches one key, you get a quick answer: location, threat level, nearest exfil tip and our worth-it rating.

When does DMZ launch?

With Modern Warfare 4 on October 23, 2026 at 04:00 UTC. Players who pre-ordered digitally got DMZ early access from October 20.

Is this site made by Activision?

No. DMZ Key Map is a fan-made tool. It is not affiliated with or endorsed by Activision, Infinity Ward or Call of Duty.

Sources