[Sailor Steve]

Yep, that way there are no neutral vessels, ever, and you can blissfully sink anything you want. Does that really sound right?

I change Neutral to '0'. I don't get penalized for sinking them but I don't get rewarded either, which discourages without punishing. Likewise I change Friendly from -10 to -1. There were friendly fire incidents, and every kaleun who sank a friendly ship was court-martialled. In every case it turned out the victim was disguised as an Allied ship or was where he wasn't supposed to be, so the kaleun was found not guilty. That might justify changing friendly ships to '0' as well, but that would mean carte blanche to sink anything, anytime, anywhere.