It's no secret that the Free Burma Rangers - an American/Christian aid group famous for helping minority ethnic groups in Burma - has been in Mosul for the past month or so.
I don't care about that
What I want to know is who these two John Doe's that are featured in this video are. FBR's press release (http://www.freeburmarangers.org/2017/06/03/child-and-man-rescued-from-isis/) identifies the tank as a local ISF armored asset and smoke cover provided by US Army mortars, but no mention is made of the two men providing cover fire. They're clearly not USA - their lack of actual BDU's gives that away - and I don't think any white people work for ISF/Mosul police.
My best guess is either Nationals that Eubank brought with him and officially aren't supposed to be there, or possibly PMC workers hired for their recent tour in Mosul.
Any guesses?
(more video of the two: http://imgur.com/gallery/al6op)
I bet its some of the guys that volunteered to fight with the Kurds. If this happened in the Kurdish AOR then that is my guess.