NetEA: Epic Armageddon by and for the community
The NetEA Tournament Pack goes back to the idea of a living rulebook when Epic was seeing active development from Fanatic. It contains:
Epic's official rules are still available from Games Workshop for free via their Epic Armageddon Resources page. Here's a breakdown on what each PDF contains:
Finally, for some reason the Black Legion and Lost and the Damned datasheets and thier Epic Tournament Game army lists never got moved over when GW re-did their website. The official versions are linked to above.