What happened to the Pale Knight's Gunners?

[Alphonse21!]

I distinctly remember the Pale Knights possessing gunners in their arsenal, but I have yet to see them in custom battles or otherwise. Is there any possibility that I could receive insight on how to enable or unlock them? I daw them in the code, but still can't use them in-game.

[Arrikirri]

I believe there is a list somewhere for Units per faction, i can't remember which but it was how i enabled Jotunn to be a base hire for MoV. Campaign wise, i think you need to check building requirements.