Drone, submarine engine noise:
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Opening, closing a submarine hatch
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Submarine movement at high speed
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Sonar submarine
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Stops, soldiers talk, Tank rides by
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Submarine torpedo launch
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Shots of a tank machine gun in the distance
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Tank movement, machine gun, cannon shot
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Alarm, submarine alarm, alarm
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Tank shot, machine gun firing in the distance
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Tank shots, shell hit in the distance
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Tank movement
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Submarine movement, Engine start
★★★★★