Need Help creating Def Jam type of Game

Hey I’m new here. I learned how to work some basic Animations in Blender back in 2008 but haven’t really touched it since then. I am currently trying to create a Def Jam typed fighting game based on Detroit, with a storyline, exhibition mode, and a free roam feature as well. I am trying my best to create my models but I am stuck. I used Face Gen to export an obj and I used ZBrush to put the texture on the face including eyes and hair. I now need to retopo the face and obtain IV Maps. After doing this I will be able to knock some more of the characters out if the way. If anyone is interested in working with me or even just providing some help please let me know. It is needed.