@cmc-serres

Here is everything about the assassins, who they were and what they became, and sorry to say, what they still are.
SPOILER
"The old man of the mountain." From real life.
http://www.alamut.com/subj/ideologies/alamut/secDoctrines.html

Refering from the mystery event: "The old man of the mountain", you seem to know what you are doing. The first game in the series, was about just that lunatic.
What i dont know is why the game is created from a multikultural team, where multikulturel is "THE NO GO", as the old man of the mountains idea, was, to convince any, to kill his political enemies, for a place in heaven.