MW4 DMZ key · Mirae General Hospital
Mirae Electrical Room Key Location in MW4 DMZ
The Mirae Electrical Room Key opens the electrical room in the northwest corner of the hospital's basement parking garage. Its description names grid F5, at Mirae General Hospital. A reward for the Operation Critical Extraction Story Mission at the same hospital.
Last updated Game version: DMZ Early Access, day 3
Where the Mirae Electrical Room is
| Location | Mirae General Hospital |
| Tac-Map grid | F5 |
| Rarity | Rare |
| Highest threat at Mirae General Hospital | Low |
The Tac-Map grid runs letters from west to east and numbers from north to south, so F5 is column F, row 5. See Mirae General Hospital on the interactive Hajin map, and its threat level by area in our Mirae General Hospital location guide.
What the Mirae Electrical Room Key opens
The electrical room in the northwest corner of the hospital's basement parking garage. The key card is Rare.
Confirmed by 5 sources: video 1 at 0:02, video 2 at 0:22, video 3 at 0:08, video 4 at 0:40, video 5 at 0:00. Checked 2026-10-22 (DMZ Early Access, day 3).
How to get the Mirae Electrical Room Key
A reward for the Operation Critical Extraction Story Mission at the same hospital. The steps are in our Operation Critical Extraction walkthrough.
Keys can go in your Stash between deployments, but anything outside a Secure Slot is lost if your exfil fails. Tick the keys you have in the MW4 DMZ key finder; the list stays in your browser.
Questions
Where is the Mirae Electrical Room Key used in MW4 DMZ?
At Mirae General Hospital, grid F5 on the Tac-Map. It opens the electrical room in the northwest corner of the hospital's basement parking garage.
How do you get the Mirae Electrical Room Key?
A reward for the Operation Critical Extraction Story Mission at the same hospital.
What rarity is the Mirae Electrical Room Key?
Rare, as its key card shows.
Every confirmed MW4 DMZ key with its own page
- Counting Room Vault
- Mirae Electrical Room
- Shop Records Room
- Reactor DRC Locker
- Coin Mining Den
- Supreme Leader's Bunker Access Card
- Roze's Highrise Armory
- Vault Armory
- The Citadel South Wing
- Old Barber Shop
- Rail Depot Storage
- Militia Arms Depot
- Haksan School Armory
- Re-Education Center Annex
- Imjin Mill Foreman's Office
- Iskra's Control Room
- Netshin IT Room
- Police Weapon Depository
- The Chemist's Secure Armory
- Gangbyeon Apartment B
- Airbase Armory Keycard - Single Use
- Hanex Guard Station
- Lucera Suite 703 Bedroom
- Reactor 02 Control Room
- Weapons Mod Workshop
- Executive Arms Auction
- Hazard Storehouse
Sources
- Call of Duty Blog: DMZ Deep Dive Part 1, Hajin environments and threats (October 5, 2026): how keys work
- Call of Duty Blog: Ready for Launch, Modern Warfare 4 Progression and Prestige (October 19, 2026)
Checked against the official posts on October 22, 2026. The key itself comes from players’ videos, linked above at the moment they show it; we only give a key its own page once two different sources agree.
Continue reading
Next stepGot this key? Tick it off and find the next one in the key finder.MW4 DMZ Keys: Locations and Locked RoomsEvery confirmed DMZ key: where it is, its Tac-Map grid square, which door it opens and what players found inside.Go there Related guides
EnemiesDMZ Threat Levels, Enemies and BossesThe five threat levels, every enemy type named so far, the Lieutenants and Commanders on the Boss Board, and which places start at Extreme.
Getting startedDMZ Beginner's Guide: FOB and First RunsHow a DMZ deployment works from infil to exfil, which FOB stations open at which level, and what happens when you die.
VehiclesMW4 DMZ Vehicles: List and Aston Martin DreadnoughtEvery vehicle Activision has named for Hajin, what each Paid Infil costs, where to refuel and repair, and the Aston Martin Dreadnought.
Card pictures: Screenshot: Call of Duty: Modern Warfare 4 © Activision (enhanced)