Advanced Warfare has a loot system I have found more rewarding than Destiny's. Anyways, beyond the patrol missions, isn't Destiny pretty much an on-rail shooter? Go to one spot on the map, kill a few guys. Go to another spot, oh, Dinklebot needs to scan something, get ready for horde mode. Even the raid, though there's no directives, there's still a singular path to the same ending.