I don't know if this is the right place for this but...

[Acies]

I have zero experience in this, but I'm guessing you won't find an exact answer. Perhaps this thread on the hon forums could be helpful:
http://forums.heroesofnewerth.com/showth...p?t=112409

It lead me to this thread:
http://forums.heroesofnewerth.com/showth...p?t=238517

Which appears to be an exporter for 3ds max. I think you should be able to import the amnesia models to 3ds max & export them to Hon. Not sure about it though.

Whether Frictional games wants their models used in another game or not is something I can't answer.