Unzip the map and just copy the files into your own files. Example: Copy the information into the file export_descr_unit into your own file showed in your RTW/data folder.
I already maded the Urban Cohort for the following
factions:
Parthia, Egypt, Armenia, Dacia, Greek_Cities, Macedon, Thrace, Seleucid. Please download first this file and contact me if you like it, to get the another ones.
Please say of you like it. Then, I will make send the others too.
----- I didn't used 3DS-max!! -------
I have installed the DDS-converter, whit this tool, you can convert the DDS files in the RTW folder to bmp to change it into carthaginian etc. You are also able to repaint it by yourself. Than convert it back to DDS format.