Grey Knights subfaction rules

[Krieghammer]

In the elites book, on the page of the Adeptus Astartes subfaction details, it says a kill team can use the below mentioned sub-faction rules if every model in the kill team has the "Adeptus Astartes" keyword. This is true for the Grey Knights.

 

As I understand it Grey Knights can thus use Adeptus Astartes sub-faction bonuses. After all they are also a "chapter". 

Do you see any errors in my reasoning?
I was looking into this as the Grey Knights lack proper sub-factions. 

Thanks in advance! 

[Brother Tyler]

The Sub-factions for models with the ADEPTUS ASTARTES Faction keyword are called Chapters, and their Sub-faction abilities are called Chapter Tactics. If your kill team is Battle-forged and all models in your kill team are drawn from the same Chapter, models in the kill team gain the Chapter Tactic described below, and you can use that Chapter's Tactics...

(highlighting added)

 

Grey Knights don't have the ADEPTUS ASTARTES Faction keyword, so they may not use Chapter Tactics.

 

The same keyword (in this case "ADEPTUS ASTARTES") can be a Faction keyword or just a regular keyword. The Sub-faction rules depend upon the Faction keyword.

[Krieghammer]

 

The Sub-faction rules depend upon the Faction keyword.

 

I see!

Thanks for clarifying that, I did not notice the distinction between keyword and faction-keyword..