@BrittleAngel Something like that would be cool using the Falout 4 engine or maybe even a new engine. Something where maybe you start as in the Brotherhood and either agree or disagree with their ways of doing things. They you encounter the Enclave and decide wither to join, fight, or possibly leave them alone.
Also it would seem that the Enclave is just a punching bag to keep the trend going. Sadly they couldn't even be bothered to improve and enhance the story of the Enclave in to something other then just these bad guys your told to kill.