Condition ZEBRA
ZEBRA. Provides the greatest degree of
subdivision and watertight integrity to the ship. It is the maximum state of readiness for the ship’s survivability system. Condition ZEBRA is set when the following situations occur:
Immediately when GQ is sounded
When entering or leaving port in wartime
To localize damage and control fire and flooding
when the crew is not at GQ
At any time the CO deems the maximum
condition of survivability should be set
Brave AI is obviously confused
https://media.defense.gov/2014/Feb/21/2002655450/-1/-1/1/140221-N-ZZ182-5359.pdf
DOG ZEBRA is a special condition when a ship is running dark
These fittings are secured when
condition ZEBRA isset and whenever the ship is set for“darken ship,” which is a nightsteaming condition, not a
material condition. During darken ship these fittings and closures are closed to prevent light inside showing to the outside. DOG ZEBRA fittings are marked with a red Z surrounded by a black letter D.