@Elpea: Well, despite of that, I don't discard the possibility that such build might have leftovers of the previous formation system, even if they are hidden among the .xmls (or perhaps even in the game code itself). The 1.0 Demo of AoE3, which has some beta elements, seems to have few lefovers here and there of this system, so, I beleive that more of them could be found in such Marketing Beta build.
Not to mention that it might still have functional models and animations among its files that did not make it to the final game. I remember that, in AoMH, after some modders there got some development builds, they managed to recover graphics of previously lost units, and the same happened at AoKH.
And, those are the reasons of why such build could be valuable for AoE3 modding.
So, if you could contact me in private about this (my e-mail is in my profile), or help me to contact the one who provided you with this build, I would be grateful!
The Portuguese Civ Mod III - Download at the Blacksmith
A mod that adds new civilizations, a new age, a new resource and introduces new gameplay features!
2nd place as Best Mod Pack in AoKH GOTY 2013 (PCM I) | 1st place as Best Mod Pack in AoKH GOTY 2015 (PCM II) | 2nd place as Best Mod Pack in AoKH GOTY 2017 (PCM III)
"And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful." - Revelation 21:5 (KJV)