[VonHelsching]

In a game, realism is just semantics. It's irellevant as a concept, since it all comes down to personal preferences (I agree with CCIP)

-Sometimes it is required to make one aspect of the game harder in order to offset a constraint by the game engine
-Sometimes it is required to do the exact oppsite
-Sometimes it is required to do a completly different thing just to prevent people from thrashing the game
-Some people will thrash the game into the garbage bin, because it's not "realistic"

I would agree more with the term "historical accuracy"; but then you would just have to watch the game, not take part in the war, since you're changing history by sinking even a small trawler. Also, some people would prefer to play an alternative timeline. You see, it's a debate without end.

The key in a game is supplying enough options to capture the majority of preferences.

That's all.