MW4 DMZ
Keys
Which keys you hold, which rooms you’ve looted, and the keys you pick up in the field with their grid squares.
From Story Missions
Each one is a mission reward. From our Story Missions guide.
Mirae Electrical Room Key
Reward from Op. Critical Extraction · mission done
Mirae General HospitalCounting Room Vault Key
Reward from Op. Silent Ledger · mission done
Coin Mining Den Key
Reward from Op. Shopping Hacks · mission done
Supreme Leader's Bunker Access Card
Reward from Op. Iron Citadel · mission done
Chang-san Air BaseRoze's Highrise Armory Key
Reward from Op. Grid Assault · mission done
Reactor DRC Locker Key
Reward from Op. Fallen Ember · mission done
Haneul Nuclear Reactor
Lieutenant key rooms
Each Lieutenant’s key opens a loot room. From our boss guide.
Jin-Tae's key room
Opens: Penthouse Private Lounge
Dropped by Jin-Tae (Lieutenant)
Roze's key room
Opens: Floor 14 armory, Nenshin Tech (The Grid)
Dropped by Roze (Lieutenant)
The GridThe Doctor's key room
Opens: Command Office, floor 7, Mirae Hospital
Dropped by The Doctor (Lieutenant)
Mirae General HospitalBale's key room
Opens: Supreme Leader's Bunker, Chang-san
Dropped by Bale (Lieutenant)
Chang-san Air BaseJang-ui's key room
Opens: Converted Power Room, NuriGO lowest floor
Dropped by Jang-ui (Lieutenant)
NuriGO MallGorani's key room
Opens: Scout Overlook, top of the Rice Mill
Dropped by Gorani (Lieutenant)
Imjin FarmlandIskra's key room
Opens: Transmitter building control room
Dropped by Iskra (Lieutenant)
The Chemist's key room
Opens: Secure armory opposite the north boathouse
Dropped by The Chemist (Lieutenant)
The Warden's key room
Opens: Kang's Arms Incinerator, Prison (games.gg); Activision puts the key room under NuriGO
Dropped by The Warden (Lieutenant)
Keys you found
Every key’s description names a grid square. Log it here and jump to that square on the map.
Key rooms come from games.gg via our boss guide; where Activision says otherwise, the guide shows both. The map’s A–J grid is ours and may not match the Tac-Map’s squares exactly. Saved on this device.
Unlock it with Premium in the MW4 Guide app.
- Every Story Mission key and Lieutenant key room
- Mark keys you have and rooms you’ve looted
- Log the keys you find with their grid squares and see them on the map