One has to understand that Hiltler directed certain things as to not bring in other countries into the war. Hilter named the time and the place to start a war with countries other than Poland, Britian, France. Neutrals being sunk was frowned on in Berlin so I guess the game gives you negative renown. Neutrals went in the convoys also, the Americans would patrol/escort to a certain latitude off the coast of the US eventhough we were not in the war yet. Putting in neutrals and getting bad press(less renown) is a great idea that was put into the game. GW took it further and now you get message with who you can sink and what date. Also, they have a book of flags in the UZO/periscope view with dates the neutrals became fair game.
