Hey guys,
I've got this strange thing which happened a few times already.
This time I was cruising on periscope depth with 180m under the keel. I was following my torpedo's how they would hit a ship when suddenly my hull gets damaged, as well as the periscope and battery. The next moment I lay on the bottom of the ocean

Which all happened in a minute without time compression.
I'm sure there was enough meters left under the keel. Does anyone know what I'm do wrong, or not see?