RTF is a global modification that replaces all towns in the game.

Should I unpack it into mods or the game data?

I'm not saying the mod is bad; many things are very good, the elementals and water creatures are particularly well done. I haven't tested the dark dwarves, but the manticores already sound appealing. And for the undead, please make the third tier skeletons wolves; this works well in one of the mods, and replace the undead with dark knights. I'm still eagerly awaiting the release. When is it planned?