Iv had this idea in my head for a few weeks but don't have the materials to do it justice (sadly i moved recently away from my gaming buddies after graduating college)

so, my idea: how would one go about creating a character profile for the One Free Man himself Gordon Freeman? The crazed crowbarman, the silent theoretical (and applied) physics master? I know its not the Dresdenverse since its more science and aliens than magic, but I think it could work if you got creative enough.

any thoughts?