Competitive playlist.
Usual playlists team slayer ect all ranked 1 to 50, no armor abilities, no spawning with x, no dumb -Yoink- weapon spawning pods or what ever the hell they plan to do with that.
Social playlist.
Do whatever the -Yoink- you want with this. Seriously team slayer, action sack pretty much the same as above but the social element. Nothing competitive. And go -Yoinking!- crazy! Armor abilities spawning with x! hell this is for the casual player! I loved Halo 3 had best of both worlds. I know halo 4 is new and your adding new things but dear god have the best of both worlds surely? Its so easy to please both types of players? I love MLG actually working as a team, I loved Ranked because i knew every game was going to be decent, I loved social playlists where i could have 3 guests and we would drink beer and have so much fun. Its so easy to please both types of players with varied playlists.
Anyway to sum up
Halo 3 style playlists
Competitive. Leave it alone its not broken dont fix it or add anything to it.
Social. Add what what the -Yoink- you want. forerunner vision? Weapon drop pods or whatever, sprint as a standard thing, flying freakin monkeys! go mad.