Yes, I watched some of it. It's about Lima Coy USMC. They are a reservist unit that went out to Iraq, they ended up by the syrian border and had the highest loses of a Coy strenght unit to date. 24 in all, the film is made up of their own camera recordings that everyone seemed to be carrying. It starts pre deployment, then they arrive thinking they'll get a cushy number as there reservists...wrong.
This was rerun a couple of days back and I managed to record it this time.
Half expected the usual USA Ra Ra Ra BS but it really was moving. Had to agree with the guy who effectively said that if Lima had not had so many casualties in such a short time he suspected nobody would actually give a sh1t about them.
Note they are classed as USMC Reserves. Does that differ from National Guard units or is it just a function of command structure?