I have the game and have played quite a lot of multiplayer and I haven't seen them on any multiplayer map yet. There seem to be quite a few things in the single player that don't apperar online or in skirmish games. Hope this helps.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.