Quick Answer
The vault is on Heavenly Luck Casino's main floor in F4, and its key is a reward from Operation Silent Ledger. In MW4 DMZ, the Counting Room Vault is in Cheongun Village; start at the casino's front and head right.
Where Is the Counting Room Vault in Heavenly Luck Casino?
You'll find the Counting Room Vault on the casino's main floor in Cheongun Village, in the F4 map area. Start with the casino location, then approach from the front to follow the route toward the vault doors.
Ping the casino in F4
Open your tactical map and mark Heavenly Luck Casino. F4 gets you to the casino area; it is an area reference rather than a door coordinate. For the wider approach, check the MW4 DMZ Hajin map.
Mark the casino location on your tactical map before heading over.
Shown at 00:22 in Mr ZEUS OK’s video.Head right from the casino's front
Once you're at the front of the casino, go straight to the right and continue around toward the vault. Use the front of the building as your starting point for that direction.
Reach the vault doors on the main floor
Continue to the vault doors inside the casino and use your Counting Room Vault key to open them. The key is Epic rarity.
Look for the vault doors inside the casino on the main floor.
Shown at 00:40 in Mr ZEUS OK’s video.Watch for enemies on the approach. One player closes the room door to make approaching enemies easier to hear. It's a useful way to keep an ear on the entrance while you're occupied inside.
How Do You Get the Counting Room Vault Key?
Players report receiving ×1 Counting Room Vault key as an Operation Silent Ledger reward. If you're chasing this key, that story mission is the reported route to take; see MW4 DMZ missions for the story mission list.
Silent Ledger takes you through a separate basement vault objective:
- Approach the casino and start the generator on the parking level using its timing prompt.
- Go to penthouse security. Use the Parking Levels security station and aim a camera at the vault fence to open it.
- Return through the B1/B2 Parking elevator, place the vault drill, and defend it.
- Take the printing plates from the basement vault and extract them by chopper.
Keep the two vaults straight: Silent Ledger sends you to a basement vault for printing plates. The Counting Room Vault key opens the counting-room vault on the casino's main floor. Following the mission downstairs takes you to the printing plates, not the main-floor counting room.
With the Counting Room Vault key, you can open the main-floor vault. Return to the casino's front and take the right-hand approach above. If your next locked room needs a different key, check MW4 DMZ keys before choosing your next destination.
FAQ
On the main floor of Heavenly Luck Casino in Cheongun Village, in the F4 map area. Start at the casino's front and head right to reach the vault doors.
Players report it as an Operation Silent Ledger reward, one key per completion. The key is Epic rarity.
No. Silent Ledger sends you to a basement vault for printing plates. The Counting Room Vault key opens the vault on the casino's main floor.

