The video was filmed by some Air Force Joint Tactical Air Controllers (JTAC) in Tal Afar, west of Mosul. They were with some Marine ASTs (Advisor Support Team)and are attached to Iraqi units and help train their forces on a day-to-day basis. They were in a fairly sustained firefight in the streets of Tal Afar with about 3 Anti-Iraqi Forces (AIF) and got clearance to fire a Maverick Missile. You can hear it come in and see it strike the vehicle the AIF were using for cover.