Have you modded your water to be transparent? In real life the Atlantic is too dark for this to work. The game also does not simulate the clutter of the seabed. If an escort in the game gets a lock on you, you will not be able to outfox it by laying low or on the seafloor. The only way to survive is keep moving; go to silent speed and drag your telegraph needle until it reads 50 RPM's.
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