MSDN Documentation on XNA provides all the answers you need.
Don't forget that there are other things you should be checking such as multiple controllers, the player one controller not being PlayerIndex. One and supporting XBOX 360s with multiple storage devices (including when a user pulls out one of those devices).
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.