Does anyone have any clue as to why this has not been implemented yet? Halo was and is famous for it, it would add a lot more to Destiny's 'competetive' [spoiler]haha[/spoiler] scene. Personally I just want to fire up a game of rumble on the large maps like Bastion and First Light with a bunch of friends. Would there be complications regarding rewards, crucible and faction rep, stats? Surely it just be made separate and any bounties or quests could not be completed in custom games.