I'm a real sucker for angel and demon wings, halos and horns you know kinda fable 3 style when you did a power up move. Also whether you were holy or evil was dependent on how you played the game which was an awesome part of it, it made you have to think about decisions like if you were just going to randomly kill a civilian. Also the weapons in fable 3 changed as you used them based on what you did in the game like if you combined magic attacks with a gunshot after it morphed the weapon to look kind of arcane-ish? I just enjoyed seein what each weapon would turn out like just by playin and the personality you have. But it was kind of disappointing not being able to choose how they looked. It was a kind of one and done thing. I'd love to see destiny incorporate different attachable or swappable items on guns almost all the way down customization of different stocks and stuff like in the battlefield 3 multiplayer Or maybe be able to earn parts from adventures to add to the gun like a foregrip for the hand cannon or something crazy like that!

There could possibly be a chance of emotes. For instance, a certain achievement would unlock a certain emote that you could put in one of the emote slots.