Pretty much your only mentions of "historical accuracies" were taken directly from the wikipedia page on Hashshashin. The other half was just taken from common knowledge that everyone who has read or heard anything about this game already knows. Baaasically your post was useless. But who am I to judge.

I'm interested in the game but not interested enough to buy a PS3 or XBox 360. And my PC probably couldn't handle it. So meh.