XCOM Enemy Within is a round based strategy game in the style of Jagged Alliance. So whoever was already on micro-management of state units will be delighted by XCOM, there are other than its own soldiers so much more to that you have to take care of, base expansion, research and development and by the way even the salvation of the world. The different mission types are varied, the AI is from mission to mission strongly both in terms of tactics and unit roster. So as I said, those who knew and loved Jagged Alliance can safely access over here.