XCOM Prevent Casualties of War With the New XCOM: Enemy Unknown TrailerWhile we wait until 2014 or so for the new XCOM first person shooter, 2K and Firaxis  Games, developers of the classic Civilization series, bring us a proper XCOM strategy game to tide us over with XCOM: Enemy Unknown. You’ll be able to recruit, train, and upgrade your troops to push back the alien menace in real-time strategy combat, as well as upgrade a persistent base over the course of the game. Check out the new “Casualties of War” trailer for some epic sci-fi action, and look for XCOM: Enemy Unknown October 9th on PC, Xbox 360, and PS3.