Formal notice that in the spirit of good times, not taking space dollies too seriously, and Salamanders burning down the house, I'm permitting Forge World captains to fill that role in codex detachments. Full logic (from the Facebook event
Question: Looking at using a Salamander Demi-Battle company. Requirement is 1-captain. Can we use Captain Mir'san from IA-10 (Badab War book 2) as that captain?
As the greatest of Founding Chapters, Salamanders can do & bring whatever they want.
More seriously, yes, this is fine.
Very strictly RAW it would not be permitted. He's not in the list of named captains permitted to fill that slot in the detachment by the codex and FW has not put out any errata updating that. FW's official unofficial stance on this very question as of late July is:
"Officially, no, but in your own games, you can of course agree to replace models with Forge World Equivalents. At some point, our rules guys might look to publish some kind of update, but nothing confirmed at this point."
(https://www.facebook.com/ForgeWorldUK/p ... 7703824172
That said, the most recent Badab FAQ (https://www.forgeworld.co.uk/resources/ ... ers_V2.pdf
) makes clear that he has Chapter Tactics (Salamanders), is a Captain that counted toward unlocking Command Squads, etc.. So mechanically everything is there for them to say it's a go, and they simply just haven't done so yet.
There's no reason either to believe these characters, and Mir'San in particular, would cause any problems to balance or rules questions.
So, we're going to take Forge World's advice, and permit this substitution. Looking forward to seeing your model for him!