Mosh Pit

Mosh Pit is a multiplayer playlist in Call of Duty: Modern Warfare 2. A similiar version, First Strike Mosh Pit is available for a short time on Call of Duty Black Ops from Feburary 4-6, 2011 for the Xbox 360, and March 4–6 on the PS3.

Overview
Mosh Pit is a random combination of all game modes excluding 3rd Person Cage Match and Team Tactical. The game mode was a late addition into Modern Warfare 2 along with 3rd Person Team Tactical.

Boosting
Due to the fact that Free-For-All is a possible game mode, and parties are allowed, Mosh Pit has been used for boosting hard-to-get challenges, such as those involving the Tactical Nuke killstreak. However, there isn't a definitive way to get Free-For-All as a game mode.

"First Strike Mosh Pit"
A special limited edition game mode is available on Call of Duty Black Ops for a short time, the equivalent of the Stimulus game mode.

Trivia

 * The player can go into locked playlists in Mosh Pit.
 * Mosh Pit was removed from the game on the Xbox and PC on June 20, 2010 to make way for the Barebones playlists.
 * A Hardcore version of Mosh Pit was added to the Xbox 360 playlist on July 30, 2010 replacing "Hardcore Resurgence".