A Pfhor-aligned mook that I had yet to draw until now (totally unrelated to how irritating it can be to fight them, I’m sure), the Pfhor Cyborg.
According to the Marathon Scrapbook (pg. 23), these guys were intended to be surgically-mutilated BoBs–the Pfhor got the idea from the data they extracted from the Marathon’s pattern buffers. The idea was either scrapped altogether or simply not mentioned in-game.
In the context of the Inmortalitas ‘verse, the Pfhor Cyborgs’ organic components are vat-grown from a combination of human and Pfhor DNA; they’re pseudo-sapient and primarily deployed as support for the smarter troops.