Pretty sure I found McCain's exact location, as per Q#1095:
Lat 36.633416, Lon 37.085220
Here's another video from 2014 (closer to when McCain was there):
https://youtu.be/6FjmqHpzRlg?t=46
It's the Syria side of the border crossing, "Bab Al Salameh." If you look up videos with those terms, you'll come across plenty with his old friends the Northern Storm Brigade.
This video is also revealing. At about 1:21 in, they switch to the room McCain was in with all of the other Syrian rebels. The shape of the room, placement of the windows, vases, AC, etc. all match up. You also get different angles as well.
Here's what it looks like in Google Earth, with the history tool (note upper left date).
Other pics are what it looks like on the ground, taken from various videos.
Brown shirt guy is the same as the one in the USAID pic, no? Beards match up pretty well, as they travel on the cheek.
I'm more concerned with the guy who's standing behind the person that I believe is Soleimani. Nobody's figured out who he is yet to my knowledge, but he looks like a translator or some other kind of aide.