I bought 2400 microsoft points, which at first I downloaded escalation map pack because my friend had it and wanted to play the new zombies map. That same night when I went to bed, I let the first strike map pack download. This morning I was excited to play because those have my favorite multi-player maps. I went to the playlist and first strike wasn't showing up anywhere. Then I went to the store on the game right which is right under xbox live when you start up multi-player. It said I have both map packs downloaded, but first strike is not showing up? Please help otherwise I just lost about 15 bucks on NOTHING. Much appreciated.