Key & door location
Take the Counting Room Vault Key to the ground floor of Heavenly Luck Casino. Follow the security-room route to the named double doors.
Updated
Casino-area map reference in Hajin F4, near Cheongun Village. Frame reviewed at 0:00 in Gamers Heroes’ October 20 MW4 DMZ guide; game footage © Activision.
The Counting Room Vault is inside Heavenly Luck Casino on Hajin. Stay on the ground floor: the door is reached through a room with computers and cash-counting equipment, rather than by searching the upper hotel floors. The reviewed Tac-Map places the casino area in F4, beside Cheongun Village.
At the correct door, the gameplay prompt names “HEAVENLY LUCK CASINO COUNTING ROOM” and offers an Unlock interaction. This named prompt is a better final check than stopping at any locked room in the casino. The route below starts at the front entrance; if you enter elsewhere, first orient yourself in the main lobby.
GamesRadar’s current MW4 DMZ guide reports the Counting Room Vault Key as a reward for completing the Silent Ledger story mission. If you have just finished that mission, inspect your recovered items and reward screen, then check the key’s exact name and description before preparing a casino run.
This location walkthrough begins with the matching key available. It does not establish a guaranteed enemy drop, a fixed container spawn or a repeatable key-farming method. Finding the building and carrying the right key are separate checks; a different casino key should not be assumed to open this door.
Bring the matching key in the loadout you will actually deploy with, then locate Heavenly Luck Casino on the current Tac-Map. On arrival, check the surroundings before entering: the reviewed footage includes hostile AI inside the building, and other Operators can also be using the casino.
From the front entrance, follow this sequence. The GamesRadar directions describe the turns, while the gameplay footage shows the lobby, computer-filled room and named counting-room door.
The reviewed frame shows double wooden doors beside a wall-mounted keypad, at the end of the room. The visible “HEAVENLY LUCK CASINO COUNTING ROOM — UNLOCK” prompt identifies the destination. Use that interaction with the matching key, then open the doors and inspect the room.
The video shows cash among the contents inside. That observation describes this recorded run; it does not establish a fixed total payout or a guaranteed blueprint, recipe or other specific item. Check the actual loot before deciding what to carry out.
The named counting-room door and Unlock interaction at 0:34. Frame from Gamers Heroes’ October 20 guide; game footage © Activision.
Return to the visible labels before spending time searching the rest of the building. A grid identifies a search area, while the door’s own name confirms the destination. If the interaction fails despite a matching key, record its message; the reviewed sources do not provide a universal fix for a missing or rejected interaction.
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| Situation | Next check |
|---|---|
| You are on an upper floor | Return to the ground-floor lobby and follow the computer-room route. |
| A locked door has a different name | Compare the key description with the Heavenly Luck Casino Counting Room prompt. |
| You are following a camera or vault-fence objective | This page covers the keyed Counting Room door, not a complete Silent Ledger mission walkthrough. |
| The key is in storage at the FOB | Inspect the selected deployment inventory before readying up. |
| You found the room but not a specific blueprint | Inspect its actual contents. This guide does not promise a particular loot roll. |
Reviewed October 22, 2026, against GamesRadar’s MW4 DMZ Counting Room article and Gamers Heroes’ October 20 video. Directly inspected frames show the current Hajin map at 0:00, the casino lobby at 0:20, the computer/counter room at 0:30, the named Unlock prompt at 0:34, the unlock sequence at 0:37 and cash inside at 0:45. The key reward is attributed to the article, rather than claimed as a directly observed mission completion.
This is a source-based location guide, not a first-hand playtest. The footage’s current Hajin map, DMZ Orders interface and Heavenly Luck Casino label establish the mode and setting; YouTube’s automatic game tag alone is not used as evidence.
FAQ
On the ground floor of Heavenly Luck Casino, in the F4 casino area near Cheongun Village. From the front entrance, turn right, then left into the computer-filled room before the main slots area; look for the named double doors at its far end.
Use the matching Counting Room Vault Key. GamesRadar reports it as a Silent Ledger story-mission reward; compare your key description with the named counting-room door.
No. The reviewed location is on the ground floor, reached through the computer-filled security room.
The reviewed run shows loot and cash, but it does not establish a guaranteed blueprint, recipe or fixed payout.