Commandant Office Key Location in MW4 DMZ
The Commandant Office Key opens the commandant's office on the second floor of Admin Complex No. 2. Its description names grid B5, at Chang-san Air Base.How to get the key
Last updated Game version: Launch (October 23, 2026)
Quick answer
- Where
- Chang-san Air Base, Tac-Map grid B5
- The door
- The commandant's office on the second floor of Admin Complex No.
- What is inside
- Not on video yet. Loot changes every match.
- Getting the key
- Not confirmed yet; keys turn up as loot.
- Threat there
- Extreme at Chang-san Air Base
Where the Commandant Office is
| Location | Chang-san Air Base |
| Tac-Map grid | B5 |
| Rarity | Epic |
| Highest threat at Chang-san Air Base | Extreme |
The Tac-Map grid runs letters from west to east and numbers from north to south, so B5 is column B, row 5. See Chang-san Air Base on the interactive Hajin map, and the threat level by area in our Chang-san Air Base location guide.
What the Commandant Office Key opens
The commandant's office on the second floor of Admin Complex No. 2. The key card is Epic.
Confirmed by 3 sources. Checked 2026-10-26 (Launch (October 23, 2026)).
How to get the Commandant Office Key
No video we checked shows where this key drops yet. Keys turn up as loot, a Lieutenant you kill may drop the key to their own loot room, and some Story Missions pay keys as rewards. We add the drop here once two players show it.
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.
Other keys at Chang-san Air Base
- Supreme Leader's Bunker Access Card: The Supreme Leader's Bunker, deep in the Chang-san Air Base Bunker.
- Air Base DRC Weapons Locker (grid B6): The DRC Weapons Locker in the secure armory deep in the air base's bunker.
- Airbase Armory Keycard - Single Use (grid B5): The armory in the Chang-san Air Base Bunker, whose door reads "Requires Air Base Armory Access Card". The card says it works once.
- Weapons Mod Workshop (grid B5): A weapons workshop at Chang-san Air Base.
- Air Base Access Card - Multi Use (grid B5): Locked doors around Chang-san Air Base. Unlike the armory card, it can be used more than once.
- Field Depot - B5 (grid B5): The Field Depot door at Chang-san Air Base, in the area the Tac Map labels Field Depot.
Every locked door at Chang-san Air Base and the key for each: Chang-san Air Base Armory in MW4 DMZ: How to Get In.
Questions
Where is the Commandant Office Key used in MW4 DMZ?
At Chang-san Air Base, grid B5 on the Tac-Map. It opens the commandant's office on the second floor of Admin Complex No. 2.
What rarity is the Commandant Office Key?
Epic, as its key card shows.
Every confirmed MW4 DMZ key with its own page
- Counting Room Vault
- Mirae Electrical Room
- Shop Records Room
- Gun Store Weapons Locker Key
- Shopping DRC Locker
- 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
- Hoesik Supply Room
- Air Base DRC Weapons Locker
- 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
- Utility Maintenance Storage
- Weapons Mod Workshop
- Executive Arms Auction
- Hazard Storehouse
- Police Station Armory
- Mechanic's Shack
- Air Base Access Card - Multi Use
- Commandant Office
- Gas Station Electrical Room
- Jang-ui's Converted Power Room
- Jin-Tae's Private Lounge
- Mill Explosives Lab
- Prison Encampment Storage
- Underground Propaganda Store Room
- The Doctor's Command Office
- South Block Armory
- The Citadel Secondary Control Room
- Field Depot - B5
- Fire Station Storage
- Haejeok Radio Station
- Hanwoori Art Records Room
- Kang's Arms Incinerator
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 26, 2026. The key’s place and door come from community key lists that describe it the same way, after we checked those lists against keys we had confirmed on video; 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.