Use this video in conjunction with this map to quickly collect all 20 Assassin Flags in Maysaf.
The video starts at flag 5, in the lower terrace of the Garden of Paradise. This video was shot in one continuous take. The flags were not collected in numerical order. There are no Templars in Masyaf. Here is an abbreviated table of contents in case you are looking for a specific flag:
Flags 1-6, 0:05
Flags 7-12, 2:25
Flags 13-20, 3:40
Similar videos for the cities/districts are found in this playlist.