I want Vampire Counts to have a ranged option, but I don't want it to be overly strong. Skeleton archers just make sense - the tabletop and lore support them existing as well. The artillery I've added is more a case of me wanting to have the option, as I just prefer that kind of playstyle.

I would be happy to add skeleton rifle-men. But before I would, I would want the ability to balance/justify it - i.e. you must have trade relation with empire, dwarf or vampire coast (where are they getting all that gunpowder from?).