I placed the files into the Documents directory because I didn’t want to mess with the Firaxis directory yet.
Ok umm this is where I placed the Tiger unit:
…\My Documents\My Games\Sid Meier's Civilization 4\CustomAssets\art\Units\tiger
The button is placed into:
…\ My Documents\My Games\Sid Meier's Civilization 4\CustomAssets\art \Interface\Button
The text files I placed into:
…\My Documents\My Games\Sid Meier's Civilization 4\CustomAssets\xml
I just hope this works.
Oh also tiger_button.dds is included into the Units\Tiger folder, should this be in there..?