Kill Zombies, unlock rewards. It's that simple. Participate in the global Community Challenge by eliminating Zombies in Multiplayer mode and the Nazi Zombies mode, and you'll unlock free gear to use in the fight against the undead, including a devastating Tesla Gun Weapon that can be found and used in the Infected, Hordepoint, and Relic of the Undead game modes.
Each weapon also has its own level and can be ranked up to unlock new optics and attachments. Choosing the correct weapon for the job at hand plays a major role in doing well in multiplayer. Your aim and reaction time can be top notch, but selecting the proper weaponry gives you an edge before the first round is fired.
Call of Duty: Modern Warfare 2 looks incredible, says Activision CFO - last post by @ Mar 25, 2009 "Call of Duty 4: Modern Warfare 2" Announced - last post by @ Jan 9, 2009 PS3 leaderboard hack ruins Modern Warfare 2 for everyone - last post by @ Dec 10, 2009