The FOX unit turns renegade in "Portable Ops" under the leadership of Gene, leading to Naked Snake and Roy Campbell to form their own team of specialists, which goes on to become the FOXHOUND unit.
The FOX unit turns renegade in "Portable Ops" under Gene's ultimate goal of that would in fact victimize soldiers in pursuit of Gene's goals. In response, Naked Snake and Roy Campbell to form their own team of specialists which goes on to become the FOXHOUND unit.