As an early sneak peak on March 28, GameStop will host the Variety Map Pack Challenge at two exclusive preview events, one in New York City and the other in San Jose, Calif., for gamers to be among the first in the world to play the new maps on Xbox 360 and meet members of the Infinity Ward team. The first 100 guests at each location will receive a free token to download the Variety Map Pack upon release, and the first 200 contestants will compete for prizing, including Gamestop gift cards.

Once released, the new downloadable Variety Map Pack for Xbox 360 will be available for download on Xbox LIVE Marketplace exclusively for 21 days.

The worldwide best-selling game in units of 2007, according to The NPD Group, Chart Track and The GFK Group, and winner of more than 50 editors’ choice and game of the year honors, Call of Duty 4: Modern Warfare is rated “M” (Mature) by the ESRB for Intense Violence, Strong Language, Blood and Gore.