Whats supposed to happen involving the beret guy?

I wonder if I screwed something up by capturing him apparently early.

What happened is the moment I got the radio report that the guy was escaping the zone I just so happen to run right into the red hatchback with my crew. Shot the driver and can't make heads or tails what the beret guy is doing. Kasun isn't it?

Anyway the objective was to "ESCORT" him back to ORION which is a hell of a long way from where we found him.

Take your eyes off of him and he starts running, walk up to him and he becomes a statue. Kill him and you fail the objective. He won't board vehicles, and I've tried walking my team 3 clicks to ORION whereas he follows but doesn't follow close enough to apparently register his presence.

In a mentally disturbed kinda way he seems to be following us to some extent, but of course doesn't show up on the team roster; I can order the men to target him whereas it shows a number by his name which indicates he's part of the squad....

What do I do with this guy, like what is intended? Arma 2's missions are very fragile and I usually seem to break them by not letting something hit it's mark one way or another.