I've made this character for Artstation's challenge Ancient Civilizations. It took the 2nd place award.
It is game ready and has almost 100k triangles and 2x4k texture sheets.
The tutorial covers all the creation process of this character from initial zbrush sculpt till final textures. The whole video length is more than 20 hours.
The tutorial is split into 8 video so if you want to see just some part of it it should be easy to figure out where it is.
In the last video you will see some tips about baking and setting up your scene in Marmoset Toolbag 3.
I hope you'll enjoy it. If you'll have any questions don't be afraid and ask away.