Double EXP Weekend

Every weekend, a new ranked playlist opens for Halo 3 players with one game that isn't normally available for ranked matches. Each win gives 2 EXP points, and losses will not take away EXP. However, you can not record a skill level for the Double EXP playlist, and can not earn any achievements on the playlist either. You can also start a game with a full party, so everyone playing is a friend (because of no achievements, you can't use this to boost for them.) Playlists featured thus far are:


 * Grifball
 * Rockets
 * Living Dead
 * Team Snipers
 * Legendary Brawl
 * Team Ball

Occasionally, Bungie will make holiday playlists, such as Infection on Halloween. Such occasions are the perfect opportunities to easily get the Steppin' Razor achievement.