if a map in a game is named "battle of okinawa" then that gives you an idea of the quality and accuracy of the game.
i don't think you will see any of that in RS, you will have a tiny snippet of the battle that is being represented.
hopefully the most exciting, interesting or spectacular snippet, but in no way we can have to pretention to say "here this map is the battle for the philippines" that would be silly.
it's quite sad, but real, that if a map name has even the slightest thing to do with hollywood, that it will have much more succes no matter how good or bad it is.
you could throw a lazy random map together of a beach and two bunkers and call it "omaha beach", and 2 weeks later the map will have it's own freakin server...