Modding

I already found it - Hello, is it possible to set up building protection and rewards in the game, similar to a crypt or gargoyle den?

Added 12 minutes later

How can I change the name of a hero class?
I mean, the affiliation with a faction, like Knight, Demon Lord, etc.

data.pak\MapObjects contains the race and hero names.
For example, data.pak\MapObjects\Haven - Alaric.(AdvMapHeroShared).xdb