I haven't had time to play with this yet beery, but I have a suggestion. Ship the sub school with 2 mods. One is the school missions (same as now). The 2d mod would be a copy of the hardcore torpedo mod...
But the dud rate would be upped to 100%.
You could shoot at friendly target ships then, and you'd know you had a hit when you got the dud messege. I guess if you were really into it, you could change the "it's a dud, sir" to "Target ship reports torpedo would have hit, sir."
heheh
tater