Submarine engine noise, water bubbles:
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Tank movement
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Submarine movement at high speed
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Tank rides by, soldiers talk, stops
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Tank shot, machine gun firing in the distance
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An armored personnel carrier approaches,
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Sonar submarine
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Tank shots while moving and torsion of the
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Surface movement, Submarine engine starting
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Submarine torpedo launch (slow with
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Submarine engine noise, Drone
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Armored personnel carrier is approaching,
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Depressurization when opening the hatch of a
★★★★★