This list includes all playlists found in social matchmaking for Halo 3.
“Social Slayer is a matchmaking playlist consisting of various assorted Team Slayer games on...Social Slayer
“Social Skirmish is a Halo 3 playlist focuses on objective games such as Assault, Capture the...Social Skirmish
“DLC Big Team is a Big Team Battle playlist, created after the loss of both Social and Ranked Big...DLC Big Team
“Team Mythic was a social 4v4 playlist, introduced for the owners of Halo 3 Limited Collector's...Team Mythic