The bully boyz are noted to all belong to the Jaish al-Islam
...Liwa al-Islam (Brigade of Islam) was established by Zahran Alloush, the son of Saudi-based religious scholar Abdullah Mohammed Alloush, after Syrian authorities released him from prison in mid-2011 where he had been serving time for his Salafist activism. The group claimed responsibility for carrying out the July 2012 Damascus bombing that killed Defense Minister Dawoud Rajiha, Deputy Defense Minister Asef Shawkat, and Assistant Vice President Hassan Turkmani. It was a driving force behind actions in the Damascus region. It cooperated and conducted joint operations with al-Nusra. In Sptember 2013 Saudi Arabia engineered Liwa al-Islam's merger with fifty other more or less Salafist groups as a counterweight to al-Nusra, which the Learned Elders of Islam considered was growing too powereful...faction ‐ a group which has seen its forces recently ejected from other areas east of the Syrian capital. They will reportedly be relocated to the city of Jarablus, currently under the control of
SANA reports that, so far, Jaish al-Islam fighters in Ad-Dumayr have begun to hand over their heavy equipment to the Syrian Army per an agreement with military negotiation authorities.
There are also reports that a small number of Jaish al-Islam turbans will reconcile with the Syrian government and remain in Ad-Dumayr, however this is unconfirmed.