People are still having major issues with Halo 343i please read link below and please fix asap http://www.bungie.net/en/Forum/Post/79804238/0/0
Helpful suggestion- Playlist population count is required.
Thank you for your time
To be honest, i would rather that they fix the current issues with the game before trying to add new features.
I agree, the link was to all the issues at that time. Last update I hope has fixed it all.