Just stumbled across this, for early work he seems to have quite a bit down gameplay wise
https://www.youtube.com/watch?v=OxOxiOQ4sXU&feature=plcp
If you want to find out more, or provide help in any way, go to this link
https://descent.silverball-magic.com/
I myself am considering helping him out with the modelling aspect
That’d be awesome to see that come to fruition.
It got an article on RPS
https://www.rockpapershotgun.com/2012/11/01/no-downside-modder-remaking-descent-in-ue3/
I emailed the guy and he responded, I’ll probably be making new for him for the assets. At least it’s not human faces, because I can’t do them yet 
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.