I've got a few convoy-related questions for all the experienced captains here:
1. When you encounter a convoy, do you do your best to sink every ship? Or do you sink the larger boats and get away?
2. Once a convoy is alerted to your presence, they start zig-zagging all over the place, and they usually increase their speed a little. Let's assume that you missed one of your targets, and the convoy knows you're out there somewhere. How do you get back into position to try and hit the convoy again? It's nearly impossible to overtake them underwater (without your battery running out), and if you surface, you'll get shot at.
3. Let's assume that I'm in prime position for an approaching convoy. I'm facing them (at a 90 degree angle) and they pass by me. Obviously, I want to take out as many of these ships as possible. I launch two or three torpedoes at one ship, then launch a torpedo or two at a few of the smaller ships. When the first torpedoes hit the first ship, the rest of the convoy will begin taking evasive maneuvers, increasing the odds that the torpedoes you fired at smaller boats will miss. How do folks here handle firing at multiple targets in a convoy? Or do you single out one ship and go for that?
If it helps, I'm not using any mods, and I'm not using manual targetting (which I know increases the difficulty greatly). Please forgive a newbie like myself for these transgressions.