Where to find the Counting Room Vault in MW4 DMZ

T1Covered by 1 source · first reported by Steam store news / itch.io at 21 Oct, 14:55 UTC

The Casino Counting Room Vault in the Call of Duty Modern Warfare 4 DMZ is something that players are told about after completing the Silent Ledger story mission, which rewards them with a Counting Room Vault Key that they can use… Only it's not clear exactly where to look to find it. Fortunately…