If you’ve been holding off on grabbing the Variety Map pack for Call of Duty 4: Modern Warfare, you might want to capitalize on the discounted price that just recently hit the Xbox Live Marketplace.  Until September 14th, you can grab the map pack at half the normal price, dropping it from 800 points down to 400.  Be sure to act quick, as the pack will be back up to 800 points before you know it!