Well, he was unarmed (at least when I got to him), but considered an enemy by the friendly AI. I managed to capture him getting to him before my teammate shot him. (I work with three 2-man teams).
One small thing at the last mission: the Destroy SAM objective didn't register, and it showed up as failed after the mission, yet I could finish the mission without problem. Also, power-nitpick - the insertion car on the River Bend mission has the wheel on the right side, but AFAIK Nigeria is a right-side-driving nation.
Anyway, as you can see, I just finished this mod, and it was awesome. Special mention goes to the ambient sounds. For example, the dog on the Hotel level was a funny surprise , and things like the airplanes passing by in the distance on the Railyard Night level, it was cool. The weapon sounds were also great.
Speaking of the Railyard Night level, there are some pretty crazy stealth missions in there Tinker - now I learned to be afraid when I see "map & mission by Tinker" at the briefing. These missions are interesting, and they certainly put GR's gameplay into a new light. You don't see this kind of thing in the original campaigns.
So thanks for all the work everyone put into it, Blood Oil was great.