I'm still a new U-boat lover (i got SC 5 years ago but i wasn't mature enough to understand it. I was 11 years then) So i continued sc again and started with enigma.
And today when i was in a mission to sink a convoy, guarded with 2 bomber airplanes. I dived and started full speed to convoys way. in the way i have taken out a periscope to look to those planes, in a min i got a message :
Stupid AI

I though.
Btw how to sink a sub with surface ship using charges, I get over the sub, let the charges on (selecting diffrent depth for charges explosion), over and over, and never got the sub...