I have run the simulation 6 times. April 1943, 3x RN escorts elite crews, within 1.5km of my boat. Each time I crash dived to 180m, went silent, went to 8xTC, never got damaged

Did not even have to maneuver....
What is worse, is that even with elite crews, the escorts leave the scene after roughy 30 minutes

This is with the Destroyer Agression mod installed
It changes in the Summer of 1943, then its challenging, but before, its not
I have Destroyer agression mod enabled, and Hollywoods advanced damage mod.
I wonder if in campaign mode its different. In single mission mode, it is not a challenge at all....its almost not worth it, because you have to
REALLY screw up royally to get killed by escorts before May 1943