The more I play the more I wish you could relive memories through traveling in time (vex gate in tower could easily do this) or just make it a memory styled mission/crucible thing. For example the battle of twilight gap could be cool to play Shaxx's counter attack with him narrating, and the game mode be a endless waves of fallen, the longer you live the better your reward. Or same game mode designed for 3 players but (Osiris spoiler)[spoiler]Saint-14s death[/spoiler] or even a 20 man disaster when crota slaughtered guardians on the moon. Heck it'd be cool to do an Eris narrated escaping the hive and crore and it'd just be constant running and hiding and last one standing gets the most rewards or something. Just small random things to spice up the game really.