Western Hajin · Former North Korean side
Chang-san Air Base: MW4 DMZ Location Guide
A heavily guarded North Korean air base built into a granite hillside, with an underground bunker complex that is larger than the base on the surface. Highest threat: Extreme.
Last updated Game version: Pre-launch (official intel, October 2026)
Threat level by area
| Air Base Exterior | Critical |
| Air Base Bunker | Extreme |
See it on the interactive Hajin map, where you can switch on every kind of marker and zoom in.
What to expect at Chang-san Air Base
- Runway, helipad, hospital, barracks, supply depots and a command building
- Large bunker doors in the hillside to the south lead underground
- Cliffs on the east side; the blog says recon teams got in from the woods to the south
- Hidden missile bunkers and a toxic containment pool nearby
Keys for Chang-san Air Base
- Air Base DRC Weapons Locker (grid B6): The DRC Weapons Locker in the secure armory deep in the air base's bunker. One source so far, not yet verified.
Every key, with where it comes from and a checklist of the ones you have, is in our MW4 DMZ key finder.
Missions at Chang-san Air Base
- Operation Iron Citadel (Story Mission): 5 steps, rewards Supreme Leader Access Card, LTV (Paid Infil), 25,000 DMZ Cash.
Every step, with a checklist that remembers your progress, is in our MW4 DMZ missions checklist.
Marked around Chang-san Air Base on the official Tac Map
These are the places on Activision's official Hajin Tac Map that are closer to Chang-san Air Base than to any other major location (our grouping, by distance on the map). Fortress: Admin Complex No. 2. Named areas: Pyonghwa Village.
- 1 Compound: Fortified enemy positions with better loot and intel. Going in quietly is often easier.
- 1 UAV Tower: Activate one for a Side Op, DMZ Cash and a pulse that shows nearby players and enemies.
- 3 Ammo Armor Caches: Refill ammo and Armor Plates, often inside enemy compounds. Each cache has a cooldown after use.
- 1 Police Station: Blue buildings with many rooms and sometimes roof access. Look here for military gear and a locked Armory.
- 1 Fire Station: Red buildings, usually in built-up areas. Look here for Radiation Gear and Parachutes. Expect enemies.
- 1 Clinic: Green buildings that may hold medical loot. Players sometimes wait inside to ambush.
- 1 Gas Station: Repair and refuel ground and air vehicles, and refill Gas Cans.
Nearby major locations
- Deadtown to the south, highest threat Medium.
- 14th Political Prison to the north, highest threat Critical.
- Imjin Farmland to the southeast, highest threat Medium.
Keys, locked rooms and exfils are added here once they are confirmed in play. How threat levels work is in our guide to DMZ threat levels and enemies, and the list of all Hajin map locations compares every place side by side.
Questions
Where is Chang-san Air Base in MW4 DMZ?
In Western Hajin, on the former North Korean side. The closest major locations are Deadtown to the south, 14th Political Prison to the north and Imjin Farmland to the southeast.
What is the threat level at Chang-san Air Base?
Air Base Exterior: Critical; Air Base Bunker: Extreme. Threat rises when you fight there and drops again once you break contact.
Is there a Fortress at Chang-san Air Base?
Yes. Activision's Tac Map marks Admin Complex No. 2 as a Fortress here.
Every Hajin location
Sources
- Call of Duty Blog: DMZ Deep Dive, Part 1: Tour of Duty – Hajin Environments and Threats, Full Intel Guide (October 5, 2026)
- Call of Duty Guides: Hajin Tac Map (DMZ) (October 19, 2026)
Checked against the official posts on October 19, 2026. Before launch, everything here is Activision's own description; we update the page once the game is out and details can be confirmed in play.
Continue reading
Next stepHeading on? Deadtown is the closest major location.Deadtown: MW4 DMZ Location GuideAn emptied North Korean farm town taken over by the military, with two Re-Education Centers at its heart and a sewer system under the streets.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.
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.
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.
Card pictures: Screenshot: Call of Duty: Modern Warfare 4 © Activision (enhanced)