"...I finally got in the middle of the convoy and used a merchant to mask my ascent to PD. I then procceded to sink two medium frieghters with three fish from the bow, and three from the aft tubes.
DD's? Stopped and flashed lights at each other, and didn't do anything else.
I probably could have surfaced and shot up the remaining ships with my deck gun. Kind of a let down. I was really looking forward to having to save my skin, because these guys were doing such a great job earlier...."
They don't have radar. If at night your scope is very hard to see and all the props in the area are masking your engines as well as all the noise from the explosions and sinkings. They might be pinging, but you are more likely to hear only the ones directed right at you.
"...Encountered small convoy of two ships. Fired T at one which blew its screw off. It stopped and drifted at about 1kt. What suprised me was the other ship also stopped and just sat there in the water doing nothing...sure i could imagine that it was pinking up survivors perhapps...but even after I fired another T to sink the first ship the second just continued to sit there doing nothing........AI....Arsed Inteligence?..."
Maybe this is just over-done rescue behavior. I've seen this too and if I wait long enough, the other ships eventually start moving off, 1st slowly, then picking up speed.
The one that bothers me more is if I get spotted by an escort the whole convoy slows down to 2 knots while the DDs hunt for me. In other sim games they would hitail it outa there while the DDs keep me busy. Maybe the idea is to keep the noise down so the DDs can hear, but seems to be an inhuman tactic to not run for your life away from where you know the danger is. It gives the impression the tactic is to slow down whenever a sub is encountered regardless of the circumstances.
-Pv-