I've decided to start doing my torpedo navigation manually as i'm finding that much easier than just pointing at a ship and firing (however strange that may sound

). Also, its just generally more satisfying getting a hit when you've done all the work yourself
Going to start a new campaign though now and leave my old one as it had a few gameplay settings which I wanted to change, but can't now (such as external camera - wanted it but forgot to untick the box and no dud torpedoes! im finding it hard enough already to get a hit without ghaving this extra hurdle to cross

)