Well, then I guess I've inadvertently done you a favor because I do not even properly know how to successfully mix and match various weapons, armor, and units. I've tried before but have generally failed too many times and have finally totally given up on that because the modders apparently often use different tools and so one needs to learn about attachment points and skeletons and some such things that I do not feel competent to delve in to. But I digress. All of the models in the above images either come directly from Dolen's Unit Model Improvement Project for Broken Crescent, or from New Teuton and Bulat Steel, as they have both freely altered some of Dolen's models to fit their various needs. But that was my point with both of those mods, that there has been so much mixing and matching involved that I doubt anyone (but the original artist, like yourself) can or does keep track of it all. So for the modders of New Teuton or Bulat Steel to proclaim that no one may use their work seems a bit hypocritical to me, but hey, it is what it is, I suppose. Regardless, if you see some of your shield textures being used in the images I attached, Anthoniusll, those are the mods where such sly tinkering was done. I was unaware, but once again, I will state that the above image is from my own personal modification of Stainless Steel and is for my own private use only. Keen eye you've got though, and I do really so much appreciate all of the wonderful work you have done on The Great Conflicts!
P.S. Oh, yes, I know at least one of the models you are referring to. The heavy macemen were originally heavy archers only in the work done by Dolen. So when the modder switched from bow to mace, he may also have changed the shields. Give me a moment to check and I will tell you which of the two mods those particular units came from, though I wouldn't be entirely surprised if the altered models using your shields have been incorporated into both of the aforementioned mods, and possibly other mods on that same site as well. Yes, I just checked. That particular model comes from Bulat Steel.
P.S.S On the other hand, Anthoniusll, if you are referring to the boss on the shield of a light swordsmen, that model actually did come straight from Dolen himself with no further modifications of any kind by the apparently somewhat at times mischievous folk from the Russian gaming site.