darguth , how difficult would it be to allow lists with multiple battle brothers detachments? I have in the past run Dark Brothers and Wolf Brothers in the same list. Am I missing a selection option?
You can currently accomplish this if you add multiple armies to your roster. You could add two separate Battle Brothers armies to your roster and select a different detachment for each army.
If you want them in the same army, it's probably not that difficult to do in the grand scheme of things. Most of the selections for Detachment-specific units or upgrades are just controlled by a Hide flag that conditionally checks to see if the root detachment has been selected. So we'd just need to remove the "max 1" restriction in the Detachment Selection entry and that probably would work. But I do think it might make the roster as a whole a bit more challenging to read, personally.
I'd be willing to implement that change if people want it, I don't feel strongly about keeping it as-is. However, I think I'd hold off on that until another Battle Brothers pass makes sense so that I can focus on updating other armies for now. I'd like to re-touch BBs and Soul-Snatchers to allow Combined Unit entries anyway, but I figured I'd do that either A) when OPA puts out a new version update for them or B) when I've completed everything else for GDF basically.