Approach is the mother of a s sucessfull attack. I've been using the same srategy since the SHIII came out and with all the mods and it works!
1)Intercept the convoy with about 2h of advatage (I wait even more if the night is close)
2)Submerge and silent run paralell ahead of convoy 3-5 km away from their course
3)fiddle with range speed and course and start adjusting targeting computer
4)turn for a nice 90° shot and supercrawl just to maintain P deph
5)a few periscope popups for final observation and re-cheking data (protractor to check AOB because if ussualy not precisely 90°)
6)about the time convoy passes at 0°gyro angle you shuld be just 1km away or even betwen the convoy ranks (stern tube kills
)
7)sink 'em all- let god sort them out
*8)bitching because only 2 of 5 torpedos actualy detonated on diffrent targets meaning there was nothing wrong with solution they were just duds (happend the last 2 times- luckily one of the 2 was a C3 one shot kill... imagine that...and it wasnt even a keel shot
)
Tactic is very adjustable if there are a bunch od DDs you can still take the perfect 0°gyro shots from great distances and still actualy hit something because you a get very accurate solution.
The only problem is the frontal escort when you get close and personal for 300m-1km shots but if the convoy is not alerted he's no problem at all- just wait with the engines stopped and he'll pass (he once marched only 20m away and I was like 20m deep nervously listenig to hydrophone wondering if he's going after me- in the end he just passed by:rotfl: )