[quote=@BCTheEntity]
[@Roosan] I read something about that being partially the Custodes' job. Anyway, I've added a request to list your Primarch's Assignment level into the Skills section of the Primarch's sheet, and I've actually added two things to the Legion sheet: the previously-mentioned Dramatis Personae, and a section noting the Legion's size, how many Astartes are actually present in its ranks. So, uh, if everybody could please modify their sheets accordingly, that'd be wonderful, thank you.
[/quote]

I think based on canon this was usually around 10,000 per Legion, with the Ultramarines being the exception. What kind of constraints do we have on Legion size?