I believe that first image, used as reference for the ai, is carrying javelins? I at least think it's javelins, as the rider seems to be pulling it out of a quiver? It looks like it might be a large/long quiver but I'd need to find the original image to check.

Quick look at the gloox sources there is no explicit handling of client certs at all. Also https://learn.microsoft.com/en-us/windows/win32/secauthn/performing-authentication-using-schannel suggest Windows only looks for client certs if the server actually asks. Maybe you can configure ejabbered to not do that.

For reference: https://gitea.wildfiregames.com/0ad/0ad/issues/5396  I believe it's likely that this is caused by the same underlying problem.

That's great, perhaps broadcasting the matches on several social media platforms would promote both the game and the mod.

https://www.eliteminiaturesaustralia.com.au/a-miniatures-palmyran-army-3rd-century/?srsltid=AfmBOootOYKRW1X_8_8-2LqMPbaZcWsD7OyOnIvm8ALkbG7Qh2ZLwLTf   This is difficult; there aren't many sources on the appearance of archers. Basically, it's a combination of Eastern archers with a Persian archer and a Syrian auxiliary archer.