You must find all flags in the Poor, Middle, and Rich districts of Damascus
for an awesome guide to the Damascus flags (as well as all other flags) and the Templars.
Please give full credit to FiReStOrM^
for his awesome work and dedication to making this incredible resource.
In case his page goes down again, I have left videos of all Saracens flags in all Damascus districts, credit to youtube user TheGameStory.
Videos 1-2 are Poor District.
Videos 3-4 are Middle District.
Videos 5-7 are Rich District.