Ok this time i came back with TC X8 but still big mess in Wilhelmshaven...
At exact 24km from harbor i got huge sound bug and smoke in harbor (X mark)
I went back outside the circle, and tried again to see if i could reproduce it.
Second time at exact same distance got the sound bug again...and probably more damage inside harbor.
I just can't come back at TC1, it's too much time waster.
In my opinion, you really should try to decrease the harbor ships number.
Why not make an add on mod with less boats in harbor?
WAC is so beautiful, but this issue is immersion killer IMHO
PS: I can go TC X125 radius 35 Km from harbor without any issue. After that i went X8