Osiris

So I’ve started CoS as my main Sigmar army, while it’s going to be a slow grow army I am trying to keep it purely Freeguild. Im planning on having 3*20 Halberdiers, 1*20 Crossbows, 2*20 Handgunners as a core. Beyond that no real clue yet beyond wanting Greatswords. Probably Hammerhal because lots of banners and would increasing Guard unit size help. Or switching to SnS on 1 or 2 units?