Hello, Sea Slug. Several of us are actually already trying to fix the XXI submarine bugs. In fact, we were looking for ways to fix the XXI battery bug, among other things. I am going to try the e_propulsion fix asap and let you know what I find.
Also, I believe someone has had some success fixing the snorkel radar. I just need to contact them and see if they will let me use it in an XXI fix mod. Please, feel free to stop by the thread where we are working on this,
http://www.subsim.com/phpBB/viewtopi...40262&start=50