Are these guys specials hosts who don't respond to orders or they are real men? I don't remember at all!
The only thing we really know about the Ghost Nation so far is that they are supposed to be hosts encountered in the "higher level" fringe of the park, where encounters are more "difficult".
The website for the Westworld park seems to also indicate that with the right moves, you could actually work WITH them and not just AGAINST them:
Ghost Nation Territory is only recommended for expert gameplayers; their storylines intersect with some of the most thrilling in the park, but they’re also the most difficult to access. Trust and respect are the keys to their inner circle.