2017 photo of one of the most important corridors in the MSCB (Missile Site Control Building).
On level 2, right to left:

• Entrance to the BMDOC (Room 207, Ballistic Missile Defense Operations Center).
  • The BMDOC provided the major tactical control of the Safeguard system.
  • The raised floor extended to the bottom of the doors.
• Entrance to the ERC (Room 206, Equipment Readiness Center).
• Two entrances to small offices (Rooms 204 and 205).
• To the right at end of the corridor:
  • Data processing area (Room 201).
    • Contained entrance to the SRV operations center (Room 203, System Readiness Verification).