First of all this wasn't my idea at all. KillzEmAllGod came up with taking some of the old beta armors and I basicly took that idea and made my own version.
So what it does :
It adds some armors that actually once were available but somehow didn't make it into the final game version and makes them researchable with (hopefully somewhat) balanced stats and prequisites.
I didn't take ALL armors that could be found inside the CoreSpecialArmor.xml. Instead I only took a couple that were already usable in some way.
Most of them can be used when designing units (as long as you researched the tech) and some can only be equiped to heroes. Also there are different types of armors for male and female as well as for kingdom and empire.
Just place the file into your ../Documents/My Games/Elemental/Items folder and enjoy.
Version 0.5 (right click -> save to) : old_armors.zip
Version 0.5 SC Edition : old_armors_sc.zip (This version makes all new armors available in souvereign creation. However it makes the game highliy unbalanced since your sov gets the armors right from the start....it's no fun this way)
[EDIT : Since some had a problem downloading the XML file directly I reupped it into a zip file.]