The first add-on pack for XCOM:Enemy Unknown, the Slingshot Content Pack, is now available for $6.99/560 MS Points on PC, PS3, and Xbox Live. PS3 users in Europe can expect the content to land tomorrow via the weekly PSN update. In the DLC, players will meet a Triad operative, divert an alien ship’s course, and battle the aliens in the skies over China through new linked Council missions. The pack also includes three new maps tied to the Council missions, a new playable squad character, and new character customization options. If you’ve yet to pick the game up, a two level single-player demo is still available through PSN, Steam, and XBL.