[I'm goin' down]

I have not made it long enough to take on many large convoys and have not caught up to any TF's. It took me awhile to figure out manual target using the TDC, and using the KIUB mod. When I have challened a convoy, the dds picked me up early, so I dived to avoid them. I haven't figured out a good strategy to penetrate their defenses. However, there are a lot more air attacks, and when they are accurate, you spend a lot of time repairing the boat. I would say the AI of the dds is above average, but the mod has many more variables that creates problems. One difficulty is allied air support; another is the requirement you actually sink the enemy target (not just a neutral) to get credit, there are a ton of different ships, and you have a lot of time before your boat goes down, so you can try to repair it before you give up.