Reminder: Unlock Halo 3's 7 on 7 achievement

Friendly reminder to all Halo 3 fanboys who are on a mission to unlock all the new achievements, today is the first chance you have to earn Halo 3's "Vidmaster Challenge: 7 on 7" achievement.

To unlock this 0 Gamerscore achievement, you have to enter a matchmaking playlist with exactly 7EXP on the 7th of the month. Seeing that today is October 7th (your next chance will be November 7th), all you have to do is make sure you have 7EXP in any Halo 3 playlist. It's that simple. And for those of you who have earned over 7EXP on all the playlists, Bungie setup a special one day only 7 on the 7th matchmaking playlist called "Icy Treats". Here, you'll start out with 0EXP and play in Cold Storage until you win seven games and earn your 7EXP. Happy unlocking!