Originally Posted by
Charistoph
There are the Legion Marines and the Adeptus Mechanicus. The Legion Marines all have Chapter Tactics, a few Unique Characters, and Legion-specific units and weapons (for those in the books, anyway), a lot like the Space Marines of 40K. The only real difference is who is playing them, and that doesn't really change it from being Marine-on-Marine action. Either of which is a good reason not to have a pure HH tournament.
On one hand, if you have narrative gamers more in HH, they are not as tournament hungry in this realm of the game.
On the similar side, if you have a pure HH tournament, all you have is Legions and AM, no Xenos, which drops your army count by a significant degree. Even if you allow the Xenos that were around in HH, that's just Orks and Eldar. Necrons a maybe. And Sisters would be out as much as Tau or Tyranids.
Should HH armies be allowed in tournaments? I think so, but the HH scene just isn't ready to be taken on their own as an independent game.