@ Man of West Gondor
Here is your etruscan unit using the Rome2 Editor, simple and fast: http://www.mediafire.com/download/zg.../Etrusc_Mod.7z
Spoiler Alert, click show to read:
My advice: Make first the unit with the basic tables to get familiar with process and then add more things but one at a time (new model, etc.) so if something goes wrong you'll know where to look.
@ Alexander
The same for you. I agree with Regoso, modding needs to go slow at the beginning and make one successful step at the time so in case of an error you can get just one step back and spot it.