But last night I got a contact on my map from a convoy (100% realism), so I layed in ambush listening to the hydro, but it changed course at the last moment, and it passed me by at some range. I could try to change my ambush point and attack, but I didn't know it's new course, so I let it go and hydroshadowed it for 5 hours or so.
Later I got another update and set up an ambush, but the same thing happended. At the last moment they changed course. It was very frustrating and my crew and I were tempted to guess the ambush point and attack from there, but I figured that the change of setting up a succesful attack without knowing the target's course was very low.
This happened a third time...
But the fourth ambush brought me luck. They stayed on course right into my ambush! Hit a large tanker and a medium cargo. The escorts found me but lost me very soon, no damage.
Now I just surfaced and silently following the convoy, because I believe the targets that I hit are falling behind...
I have a
feeling right now. My patience got rewarded.