Microsoft has confirmed that MS is banning players from Xbox LIVE who use the 'Javelin Glitch' in Modern Warfare 2. Bans can last from as little as 24 hours to PERMANENTLY.


Stephen Toulouse, the director for policy and enforcement for the Xbox 360's Xbox Live online service, announced via Twitter on December 2 that Call of Duty Modern Warfare 2 players who abuse the "javelin missile exploit" will be banned from the entire Xbox Live service. Depending on the severity of the abuse, the ban may last between 24 hours and a few weeks or, in extreme cases, the ban may be permanent.

The Modern Warfare 2 javeline exploit is when players intentially abuse a glitch in the online multiplayer. The player switches to the javeline missile launcher after "cooking" a semtex grenade by holding down the grenade throw button. This locks the player's actions, but once the player dies the javeline missile explodes, killing all enemies within an enormous radius.
Source: Examiner