XCOM fans will get a fresh batch of content with the addition of the new 'Slingshot' expansion available now.

You and your team will be heading to Hong Kong to retrieve an 'unknown alien device' with the help of a Triad double agent. New missions, new gear, and new maps are all promised in the new expansion pack from Firaxis and 2K. 

XCOM  was one of our favorite games of 2012, and we are hoping that the additional content will be the first of many to the core game-play. Watch the trailer and let us know what you think on Twitter.