Several tanks approach, maneuver in the mud:
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Drone, submarine engine noise
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Submarine movement, Engine start
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Tank machine gun shots
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Catapult moves on a dirt road
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Opening, closing the hatch of a submarine
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Submarine dashboard
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Tank drives by
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Opening, closing a submarine hatch
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Submarine engine starting, surface movement
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Tank movement, machine gun, cannon shot
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Submarine floats to the surface
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Submarine movement at high speed
★★★★★