This project uses the Animated Spartan King by bshgame, found at the Unity Asset Store
Warning: This project was uploaded recently, but it was actually developed circa 2015, with what is now a very old version of Unity. I decided to upload it here on Github because I liked what I had achieved back then, specially since editor extensions were never that well documented, but because of its age it's possible there are deprecated and incompatible code present in this repository.