Hell on Earth - Taking Back the Wasted West
Before the Last War some military organizations bent their efforts towards building Cyborgs. Unlike augmented humans who might have a prosthetic or two running on a battery Cyborgs were built from Harrowed, and powered by siphoning energy off of the manitou animating them.
This process is accomplished by using a spirit fetter. The practical upside of this is that the bound manitou is incapable of asserting control over the cyborg. The downside is that the military didn’t want harrowed killing machines walking off with a few billion dollars of government tech shoved into them. So every Cyborg came equipped with an AI crammed into their brain to keep them in line.