User blog comment:Master Sima Yi/Assassinews 19-03-'14 – Two Assassin's Creeds for 2014?: Unity and Comet/@comment-24760042-20140702114028/@comment-2142534-20140702221111

Actually, the memory in the co-op demo isn't so hard when played cooperatively, "Don't get any damage" would basically mean "Be stealthy".