Modding Black Ark "Building Effects"

[Courageous]

Hi, I would like to mod the building effects of the Black Arks; I've been looking in building_effects_junction_tables, and either the building key is opaque (and therefore I can't find it), or Black Arks are assigned somewhere else. If they're somewhere else, what table might that be, and what might their key be?

Thank you.

[Courageous]

Edit, for posterity:

It was there all along; the key is wh2_main_horde_def_*. I wasn't seeing it because I had "main_def" set in my filter.