Wait, you went into Scapa in a DiD career???
AND ran into the subnets in the anchorage...
That's a good way to have a short career
Didn't you know that it's just as likely to run into the Hood at that time, oh about 100km west of Scapa, usually with another battlecruiser, a light cruiser or 2 and only 4 DDs I've sunk her once there and encountered the same group repeatedly in that spot.
Then there is AM36, also a Warship hotspot at that time. almost any type of warship passes through there with the exception of carriers (at least I've never seen one there).
Also the water is 100m deep, no subnets and you might bag another ship along with Hood
and you might have a 2nd and even a 3rd patrol in your career