I didn't make it!
I downloaded the attribute editor, and basically did everything I wanted to do, except two things : Change the damages done by certain units, and change the build limits for certain units. ( Like the Commissars and the Eldar Rangers)
I can't find any tutorials on the site I've been on....
Anybody got tutorials that would help?
Try searching the relic forums for that answer. The modding community over there is very active and your question and several tutorials can be found over there