I can't speak to using previously generated EDMX files but there is support to use Code First with existing databases . As for the automatic Recreate, yes, this will kill all your data. This is meant only in rapid development where the persistence of data doesn't matter (and, in fact, is likely unwanted as you discover issues with business logic and want a clean start with your updates.).
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.