So I've been trying to 100% the game, but I noticed that I needed the Auditore crypt in order to do so. I went into Uplay (bought the game off Steam) thinking that I completed a few challenges since I got a bar at the bottom of my screen saying that I completed a "task" multiple times. To my dismay it appears that AC 2 doesn't have any challenges available and I didn't get any tokens. I also realized that it said that I redeemed every reward, but I can't access it in game. So I'm in this situation where I spent a lot of hours collecting everything for nothing since I can't achieve 100%. Can anyone please help me? Apparently AC 2 does have challenges.