For those of you who fell for our April Fool’s joke about the Call of Duty 4 map pack, we apologize, but we just couldn’t resist doing it.

However, you can rejoice as the Call of Duty 4: Modern Warfare map pack is officially available for download via Xbox Live Marketplace.  The download is 445MB and will cost you 800MS ($10) unless you bought the Game of the Year edition with the maps included.

Xbox Live Marketplace gives us the following description of the maps:

"Reinforcements have arrived! The Variety Map Pack includes four new multiplayer maps featuring a variety of locations. “Creek,” a wide-open village ravaged by combat where concealment is the difference between life and death; “Broadcast,” fight throughout an enemy communications building with confined corridors and wide-open parking lots; “Chinatown,” a foggy downtown district, lit only by a full moon and the neon glow of the city; and “Killhouse,” featuring a desolate training warehouse filled with a variety of building mock-ups and soft and hard cover points."

In addition to the maps hitting Xbox Live, community director Robert Bowling has hinted that, "In addition to the map packs hitting, I hear there may be a little extra XP up for grabs this weekend when playing on the new maps."