Look at the logo, it's on the left corner of the video, on the 1st T-72AV back and on it's IR illuminator, on the turret of the 2nd BMP-1 and on the side of the AMP-S field ambulance. This belong to the Liwa Al-Islam brigade (translated to Banner of Islam).
This organization originated in Iraq and they have kidnapped a UAE diplomat in Baghdad in May 2006. They are known to be Sunni. They commanded by Sheikh Zahran Alloush and operated within the Syrian Liberation Front under the command of the Ansar Al-Islam brigade on the Southern Front. It's being said that they are excellent fighters.
The column we see in the video is made of 2 T-72AV MBT, 1 T-72A/M1 MBT, 3 BMP-1 IFV, 1 AMP-S field ambulance and 2 ZSU-23-4 SPAAG
Google translates the video's title as: Some armored brigade Islam during bout Rabat switch shows mount Qasion in range of fire.
So I am guessing it's the Moroccan army here not Al Qaeda?
Mount Qasioun is in Syria, in the vicinity of Damascus.