@ Ykkrosh
That could work. I tried using AoMEd yesterday but the scenario files didn't appear as files that you could convert.
All I really need to edit is .scn files, so that's a good thing. Have you played the Golden Gift campaign by Ensemble Studios? It's a vanilla campaign, yet they somehow were able to enlarge the metallic boar unit. I want to look into the scenario document and see if there is anything that tells me how they did that so I can transfer that code into another .scn document and try to find a way to enlarge/shrink units in AoM vanilla. Long stretch, but it could work.