Hello Brennus,
Sorry for the delay. We will gladly share our information.
First of all, the naming is incorrect. The word "warriors" is misspelled, it should be Meomrebi (or Meomarni) instead of Mehomni.
The word "Kartvelian" is misused, it is a term to describe Georgian language group or peoples. "Georgian" would be "Kartveli". So, the correct name would be
Kartveli Meomrebi (Kartlian Warriors).
Secondly, archaeological materials and historical descriptions indicate that Kartlian warriors should be represented as heavily equipped spearmen.
Helmets
You should remove the leather and horny helmets. They aren't authentic. There is a record of Chalybes wearing helmets with horns though.
Chalcidian helmets found in Georgia
You can also use eastern conical helmets. They are depicted on a pitcher found near Mtskheta, IV-II century.
Armor
The unit should be equipped with scale armor. You could also use leather armor according to Strabo.
Greaves
Three pairs of greaves have been found in Georgia, one of them even had hip/thigh guarding plates.
Shields
Current flat shields, with some stripes, aren't reasonable.
The horn below was found in Eastern Georgia (Kartli), so Kartlians are the ones who should have these shields.
Round shields, can be used as well but they should be larger, curved and strengthened with metal plates.
On the shields, you could draw Borjgali(symbol of the sun and eternity), bull, lion.
Weapons
Spears should be the primary melee weapon
These are the types of spears found in Kartli, relevant to the period.
There is numerous evidence of both swords and axes. I think you should use swords as a secondary weapon but unit models should also have hatchets for historical representation. Bellow are the findings appropriate for Kartli.
Skins
Kartvelian units should have Caucasian skins, in the game they could probably be represented by South European. Those Middle Eastern skins are inappropriate.
Khevsurs drawings could be used as samples, though they are old(shields should be larger).
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