Zaunkönig How to Use?

[SQUAWK]

Hello everyone!

I have not played SH5 for years so i want to become a Capt. again

To be honest i play a LOT of Flight Sim (DCS) and thats why i edited some files from SH5 and i got ALL Torpedos at the Beginning of the Campaign.

Only Mods installed are WOLFS of STEEL WITHOUT REAL NAVIGATION!

I play it to have fun , so realism isn't that important for me.

My Question :

I have a Destroyer crossing me at a Distance of 1.2 KM...
my Engines are shutdown, Silent on Board.
I know that the Torpedo will start listening after 400m of running.

So at 1 KM Distance i fire up the torpedo, he runs to his Enemy and after 400m he makes circles and then explodes by itself or i just revieve "Torpedo missed sir!".

What the hell am i doing wrong?
Is there in the Mod something i have to learn witch is different from SH5 Stock?
(I don't have that Green and Yellow point on the enemy ship )

Rest is going good so far it's just its frustrating that those best torpedos dont hit the destrovers, the merchant i can hit normally with normal Torpedo.

THANKS