This will also help you out to get Generic Patcher downloaded and working:
http://www.subsim.com/radioroom/show...=205620&page=5
I would use his Snapshot file at bottom for starting point. When you run it after setup, it will want to active some other dependable things in patch, say ok and let it.
The only thing I changed was in SHSim_Patch, the Torpedo settings. I turned all but the bottom one off. You will get tons of duds when duds are on. Like 1 or 2 out 5 will be good torpedoes. I can see where it would be good to add from historical point of view, but more towards end of Campaign, towards end of war where there were tons of malfunctions. Which personally I think were from sabotage.