I had a thread here somewhere where I got caught in Scapa Flow, spotted by shore batteries near the net. I hugged sediment next to the net which kept the alerted enemy vessels keep clear from me ... then in time hugged the shoreline where they dare not go.
In the thread I recall mentioning 2 ships grounded, two ships ended up getting hull damage and blowing up from their depth charging in the shoal water, one ship got hung on the net ...
I eventually escaped hugging the shoreline, moving slow with my fathometer checks keeping me several meteres above the sediment ... when at a certain area I surfaced and took to the sea flank speed ...
It was my best furball adventure yet!
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DID, no cheats, no shortcuts, no non-historic equipment deviations. Boat and crew safety is integral with my immersion style! Follow the historic events during your patrol:
http://www.uboat.net/today.html