https://www.facebook.com/media/set/?vanity=magistermilitumreenactment&set=a.1325288054488452 There is another helmet that predates the Intercisa but is still from after the war with Palmyra(272 AD), dating from approximately 280 AD.

@AsherThanks for the feedback! I'm keeping those points in mind, but I decided to go live like this to show my progress. I promise to improve and get them fixed over the coming days. Thank you

Cool idea, @MatiusRock! It was a little glitchy on the first load, but I think that was just because it was downloading the assets. I also got some rendering issues: 

There is a mod with good concepts that fixes the Rome II DLC Empire Divided. https://steamcommunity.com/sharedfiles/filedetails/?id=2805330646 My problem is that I saw several Intercisa helmets in that mod.  

I found a scene of Zenobia with her camel soldiers. It gives me a clue as to what some of the troops looked like.   A rather Arabic-semitic style with turbans, some ice like the ones I showed above, less Roman, it gives me the impression that she didn't use many troops with a Roman appearance.   In theory, many scenes from Palmyra depict troops wearing their finest civilian clothing. These include turban-style headdresses.