No. To lock boosting lobbies in Modern Warfare 2, (under bare bones, i don't know about regular free for all) have your party hold X before you enter the lobby, then the leader holds X as soon as your about to enter, continue to hold X until you can move IN GAME. if one person fails to do this, the lobby will not be locked, minimum of 4 people to lock, max of 6, if you invite someone to the game after entering it unlocks the lobby.
You need a JTAG.
No patched
Unfortunatly, no.
yes
You have to get invited by a co-host or a host that hosts challenge lobbies
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Infinity ward
infinity ward
You do not challenge Infinity Ward
You could delete the system 32 file, in your windows folder.
Infinity Ward.
Infinity Ward