attached
If you don't mind, I'll ask a couple more very important questions: 1) how do I remove a specific NCF creature from the game? 2) how do I add an NCF creature to the hiring buildings on the map? 3) where can I increase the damage of castle towers?
After that, the unit will stop appearing in the game; in principle, this is the same as cutting out the unit (this is an option for the lazy).
2) It's simple with dwellings. At the very bottom of any dwelling, the ID of the hired unit is recorded, for example, a peasant hut:
.........................
CREATURE_PEASANT
DWELLING_TYPE_SPECIFIC
replace PEASANT with the unit number, and that's it.
3) I don't know about the damage.
The problem with the griffins from BDT is that it's a texture-recolor; you can pull the griffin from RTF - it's made according to the Zahar template, so you can easily make it a new unit, and then add the textures from BDT on top