Deep Vault 406 Keycard

X01 · Updated 10 Nov 2026

Verified stepsAwaiting notes

Deep Vault 406 is an X01 keycard in MW4 DMZ.

Screenshots

TypeKeycard
RarityAwaiting notes
Value shownAwaiting notes
MapX01

Verified facts

  1. Find it on the desk in the Executive Room, Admin Offices second floor.
  2. Open the Deep Vault gate with it. The gate does not use it up.
  3. Open Room 406 inside the Deep Vault with it.
  4. Take the stairs marked 4 and follow the corridor with the railing to Room 406.
  5. Look for four safes in Room 406. An SR-16 Bio Agent Sample has lain loose inside, though not every match.

Areas

Sources

  • DMZ Map — X01 guide — Find it on the desk in the Executive Room, Admin Offices second floor; Open the Deep Vault gate with it; Open Room 406 inside the Deep Vault with it
  • MetaRadar — X01 Black Site guide — Find it on the desk in the Executive Room, Admin Offices second floor; Open the Deep Vault gate with it; Open Room 406 inside the Deep Vault with it
  • COD Central — Executive Room keycard — Find it on the desk in the Executive Room, Admin Offices second floor
  • COD Central — Deep Vault 406 keycard — Find it on the desk in the Executive Room, Admin Offices second floor; Open the Deep Vault gate with it; Open Room 406 inside the Deep Vault with it; Take the stairs marked 4 and follow the corridor with the railing to R; Look for four safes in Room 406
  • DMZ Map — Keys list — Take the stairs marked 4 and follow the corridor with the railing to R; Look for four safes in Room 406