Drone, submarine engine noise:
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Submarine torpedo launch
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Catapult moves on a dirt road
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A shot of a tank in the distance
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Tank turret rotation
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Tank drives by
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Submarine engine start
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Sonar submarine
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Machine gun, cannon shot, Tank movement
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Surface movement, Submarine engine starting
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Tank movement
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Opening, closing a submarine hatch
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Water bubbles, Submarine engine noise
★★★★★