Board Thread:Warhammer 40k General Discussion/@comment-7671639-20130406191336/@comment-7232811-20130407195531

That's the easiest way to go, non-codex that is, but the backstory of the Chapter could have it's own myths & legends, famous personnel, & its own secrets & mysteries, & not necessarilly be radically different in its makeup (having it's own unique traits & makeup is pretty good too though, & just about essential to make it 'your own' in my opinion). I'm creating my own Chapter as well, & personally, I think adding it's own fables & mystical aspects help to make the Chapter more interesting than just being different on the outside.