[UKönig]

Here's one that caught me pleasantly by surprise...
I found my ship and crew in new York harbor in the early morning hours of Feb 9, 1942. (I was taking part in unternehmen paukenschlag) and was checking out targets on the US East coast.
I see a few ships that are likely targets but one in particular grabbed my attention.
It was an ocean liner, tied up. I started my attack preparations (saving the liner for last), when, shortly, a fire broke out on the afferdeck. Shortly after that, the liner was no longer an option to attack. When I checked my history, I realized that it was the French liner "Normandie", interred since the beginning of the war, and yes, was destroyed by fire, from an industrial accident while being converted to a troop ship on February 9, 1942.
This historically accurate rendering on an incident that many may have forgot about, really impressed me about the game and the level of detail built in.
I would say, check your dates when out on patrol, you might find yourself in an historical situation without realizing it.