I want to finish the two dlcs from assassins creed 2 before i jump to brotherhood but i cant seem to find the damn start point to sequence twelve. Ive found thirteens startpoint, but i want to do these in order. Is there something wrong with this? Is it because ive already beaten the game that it wont let me go back to sequence twelve(although apparently thirteen is fine)Any help would be greatly appreciated, ive put this dlc off for so long because i could just never find it