How large are Catachans supposed to be, canonically?
I vaguely remember one of the books mentioning they're basically mini space marines but he looks like a normal buff humie here.
How exactly do Catachan comissars work? Do they get some Billy Herrington type to show the entire regiment who's the boss of this gym or do they send some unlucky guy who tries to pull some commissariat shit and ends up getting folded into a pretzel?