Looking through the unit file I noticed some units that are set-up with chainmail armor, but do not have the ArmorProficiency1

These units have chain armor equipped but not the Armor Proficiency

Unit_Amarian_AI1 - Destiny's Champion
Unit_Amarian_AI19 - Pariden Knight
Unit_Amarian_AI23 - Road Guard
Unit_Amarian_AI24 - Royal Archer
Unit_Quendar_AI3 - War Mistress
Unit_Quendar_AI8 - Slave Commander
Unit_Spearman_Trog_AI3 - Avenger

A simple matter of adding the appropriate ability bonus, but all these units are using the 4 trait slots already. I'm not sure if this is causing the AI not to build these units, but it is a concern I have, since I haven't seen these units in game.

On a separate sidenote, I noticed that

Unit_Amarian_AI12 - Haven Heralds - Has equipment that has an extra capital letter (bolded to the side) <Equipment>ChainGReaves</Equipment>