WARNING. GRAPHIC CONTENT.
PR attempt by Jabhat al Nusrah to look reasonably moderate. The Abu al-Duhur airbase featured in the video was captured on 9 September 2015.
The captured soldiers were executed on a runway within the airbase grounds as seen in images below posted on social media.
The term Nusayri is used as derogatory reference to the Alawites, a branch of Shia Islam, not the regime perse as translated in the documentary.
The celebration video shown on the phone in the documentary can be found below, the title is unchanged from the source: