Hello Eragon,
maybe this will help:
go to path Silent Hunter 5>data>scripts>AI
open the file INIT with the editor.
then set all values of the non mercant ships to 1 and save with the editor.
It's recommend to save the init file before editing it, or to make a screenshot.
You can test it with single mission TDW FX update test.
My sincere thanks to Fifi and his instructions, which I have adopted here.
https://www.subsim.com/radioroom/sho...d.php?t=239686
Greeting's