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Captain, the base power is offline and the lockdown protocol in effect. If we rebuild, the lockdown will end and the doors will open.”

A Lockdown Protocol is a UNSC protocol that appertains to military bases. Should a base receive a certain amount of damage, a lockdown will be enforced. This will cause doors to close, preventing entry or exit. Only when the base has been returned to operational status will the protocol be lifted.[1]


  1. Halo Wars CES 09 Cam Footage. G4. Accessed on 2009-01-20