21. The footage shows the Paris attackers dressed in combat gear shooting and decapitating prisoners most likely somewhere in Syria. Among them were the Bataclan attackers Ismaël Omar Mostefaï, Foued Mohamed-Aggad and Samy Amimour.

22. But there is also one short sequence which shows one of the Paris attackers during a live fire exercise, probably on an abandoned military base in the vicinity of Raqqa/Tabqa.

23. This is Brahim Abdelslam aka Abu Qaqa al-Baljiki, who later shot people in bars and restaurants in Paris' 10th and 11th arrondissements and who finally blew himself up in the Comptoir Voltaire.

24. During the combat exercise, an instructor can briefly be seen pushing Abdselam during the shooting, to train him staying focused on his targets even in a panicked crowd.

25. The mysterious instructor is apparently wearing combat gear and a balaclava, but he was also pixelated by ISIS media to make his identification even harder.

26. The pixelated trainer we can see in this short sequence is indeed Thomas-Marcel Christen aka Abu Musab al-Almani, the elusive instructor of the Paris attackers.

27. A German ISIS member later told me that TMC spend hours on the shooting range himself everyday. "He was basically shooting all day, he would watch videos of Western SOF drills and then repeat it on the shooting range."

28. The significance of the Paris OP was also reflected in the way ISIS media exploited the attack. They released several videos from their provinces, articles in their magazines and then the big "Kill them wherever you find them" video, which was done like an action movie (18+).

29. Authorities meanwhile were zeroing in on the remaining members of the terror network, but on 22/03/16 the cell struck Belgium: Suicide bombers attacked Brussels airport and a metro station, killing 32.
At least two members of the cell were trained in Syria before.

30. After the Brussels attack, ISIS al-Hayat media released another video which includes the same sequence of Abdeslam during his training with TMC, but this time the Paris attacker can be heard speaking.

31. The video goes on showing the training sequence with TMC again, but then also showing scenes of the Brussels attack and the Brussels cell members Najim Laachraoui and Mohamed Belkaid who wear the same combat gear as the Paris attackers and were also instructed by Abu Musab.

32. The deadly attacks in Paris and Brussels were also a further career booster for the instructor Thomas-Marcel Christen within OSEO.
He was promoted and became the overall ISIS ExOps commander for the whole European theatre, subordinate only to Abu Mohammed al-Adnani.