I can say that most of the PVP stuff will be left undone, not because I don't play crucible, but because I'm just not very good at it and never will be. I was messing around with the chaperone quest.. ya that is going to stay not done. I'm happy just finish a match even, my old reflexes are never going to match up against a teenager anymore. I only finished my 25 sword kills thanks to mayhem, still need to do it on my other two characters. I wouldn't mind if there was actually some skill based matching like IB, i tend to do OK there, but otherwise I'm either having a great game in scrub land, or getting my ass handed to me because everyone on the other team is positive KD somewhere close to 2 or better.