Damascus, thanks to the assistance of the 1,000 Fallschimjager, has a very air-tight defensive grid. Following the loss of Homs, the Syrian government has allowed Prussia to deploy 12,000 Fallschirmjager operatives to Damascus and the surrounding areas, along with a full Carrier Group resting off the coast.
Assad not only has a group of Syrian guards, he also has a group of KSK armed with HK 417s and sporting full-body armor and thermal monoculars.