I was just thinking… With Halo 3 soon to be releasing for free on the XBL marketplace and possibly releasing on PC; maybe 343 could make a minor playlist update to matchmaking. This would update matchmaking to have playlist for all the weekend events in the past. These would include playlists for events such as- Living Dead, Grifball, Rocket Race, Fiesta, etc. In my personal opinion I think that these would be a great addition to the game as everyone has arguably enjoyed the weekend events and were proven to be very successful in bringing players back to the game. It could do the same thing here. Since Bungie stopped supporting Halo 3 there were no more weekend events and as a result we could no longer play modes such as living dead because there was no playlist for it. This upset me as well as many others and it would truly make my day if they were brought back for the Halo Community to enjoy.
Let me know what you think about this.