This might help you get started on it. Smallg had made some progress on this.
http://fpscrforum.thegamecreators.com/?m=forum_view&t=207801&b=2&p=3
around this post "Posted: 23rd Jun 2014 06:02 Edited: 23rd Jun 2014 09:16"
There is some more if you go back a page or so. Not sure if this entity needs to have a bone in it so it can be turned into a character.
Should get you started.
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