Good points all.
I do see where you're going Cyber, you're right, but it basically comes to the same conclusion; it all copies one thing, and they can't therefore be copies of each other.
Will lizardmen and / or vampire counts be a playable race? Me like vampires.
I would prefer the game to be 40K in the end though. Like my WH40K army. They're jungle hunters, perfectly evolved, armed to the teeth (literally) in bio-weapons, and covered in chitinous armour. Guess who. :P