Field Depot

The Field Depot is used at Chang-san Air Base supply warehouse (grid B5). Gear maintenance room on the first floor of the military supply warehouse northeast of the base clinic.

Epic2+ guides agree

B5 Chang-san Air Base supply warehouse

Door: Gear maintenance room on the first floor of the military supply warehouse northeast of the base clinic.
Video route: In through the warehouse main door, run straight on, keep right, then turn left; the door is there. Player report, not checked by the guides.
Inside: Not documented yet.
Get the key: Found as loot

Show on map All keys

Other keys in Chang-san Air Base

Air Base Access Card (Multi Use)
Air Base Armory Card (Single Use)
Air Base DRC Weapons Locker
Commandant Office
Supreme Leader's Bunker Access Card
Weapons Mod Workshop

Data updated 2026-10-30. Sources: Community COD Central — MW4 DMZ keys · Community DMZ Codex — keys and loot rooms · Guide AllThings.How — which door each key opens · Community dmzmap.com — key locations and locked rooms · Community 哆啦A东_DMZ无人区 — key room spots and routes (Bilibili video series)