Yes?
I'm not exactly sure what you are asking. It is a model with rules in an IA book, which are legitimate expansions to 40k just like Curse of the Wolfen and the other GW sold GW campaigns. I point that out because my IA11 (book with Corsairs) is very clearly branded as a GW product and thus a fully game legal product. That first rule in this game after rule 0 is talk to your opponent tho, and if they do not want to let you use it find new people to play with.