Well, I spent nearly my entire day (aside from the God thing) trying to beat this mission, and after reading the hints here three times, I finally managed to ALMOST beat it.
I took the SDF control thing seriously (much better control on a MTB than voice commands) and began using spectator view to line up my torps. The other thing, if I missed with any of the first three torps, I abandoned the mission at once... and I got to the point where, with rough seas, I just opted out as well.
So... in my most successful attempt...
Began by ringing up engines 1/3 and steering slightly port. After radio message came in, the first sub surfaced off my port bow. I rammed a fish down his gullet and made a hard port turn to face the second surfacing boat. At a distance of 350 meters, I unloaded my second port torpedo and swung about 40 degrees to starboard.
Lined up and closed on the third U-Boat to a range of about 200 meters, piped Starboard tube 2 down his bow and made a hard starboard turn and made a run at the fourth sub.
I came to a full stop above the fourth sub, then backed off at 2/3 power until I was about 30 meters off his starboard beam. Then I waited... and waited... and waited. I noticed his scope up so I began to gently rudder my starboard tube 1 into position. Three enemy aircraft began to approach, one dropping an iron bomb at me... In haste, I hit ahead 2/3 as the sub before me surfaced... hoping and praying, I fired off my torp.... just as my MTB's keel landed on his deck. My torpedo went flying about 3-5 meters in front of his conning tower and he dove immediately
Another time, I followed the exact same procedure, sat dead quite on top of him, and when I saw him sticking his periscope out, I started to fire away at the water with my forward AA gun. I scored several hits, and he started to surface. Unfortunately, I got sunk by a deck gun round from the other U-Boat before I he surfaced enough for me to take my torpedo shot.
Finally, I have noticed that after running the game for a while, there are times when the ship seems to go invisible. Case in point, I fired my starboard tube at the first U-Boat, and the torpedo went right through the ship between the conning tower and the props... the sub pixellated as the torp went through it, and the torp went right on going. I was so ticked!
At any rate, I just have a feeling... tonight is the night! I will beat this mission... I think I can, I think I can, I think I can.
Rob+