I earned 1000 Gamerscore on the original Assassin's Creed, with the help of a guide for all of the banners/pennants/whatever.

Wanted to do the same for the the second game.  Using a guide for the feathers.

Unfortunately, I have all of the feathers checked off but I only have 99.  Which means one that I thought I had, I don't.


Don't know if I'm going to bother going back again or not.

Damned annoying.