Index or Codex what entry should we use?

[Raven1]

I saw this from the designers commentary and want input from the community. This is what i wonder

 

 

So according to this if the model has an entry in the codex we use that datasheet so then sorcerers, rubric marines, predators, and helbrutes...etc all should use the codex entry instead except according to the codex: chaos space marine it can't have the Thousand Sons legion keyword correct?

[Sonoftherubric21]

I use codex entry; till our book is out thats the standard for my local meta and myself. 

[Khannis]

Yes, any other way sounds absurd by now. But I suspect Chapter Approved may soçve this soon.

[Nym]

I truly wonder why it's confusing so many people, even after GW's clarification.

 

You're only using a DATASHEET. You're *not* using the army building rules of Codex:Chaos Space Marines. Everything in this codex outside of the datasheet should be ignored.

 

The rules we use for building our Thousand Sons army are p.50 of Index:Chaos and they say : "The Heretic Astartes datasheets listed to the right can be from the Thousand Sons Legion. Those that have the <LEGION> keyword on their datasheet can replace it in all instances with THOUSAND SONS."