User blog comment:Master Sima Yi/Assassinews 19-03-'14 – Two Assassin's Creeds for 2014?: Unity and Comet/@comment-24760042-20140702114028/@comment-5174994-20140702181830

Hopefully that's just an early build & the optional objectives are less limiting. Or, even better, they could be worthless to getting 100% synch, & instead just give extra xp.