Which is the best expansion pack for XCOM?Ĭlass specializations give you new options on the battlefield, but soldiers who take damage will find themselves on the injury list for months. Thus, there’s no compelling reason to play Enemy Unknown if you own Enemy Within, unless you really don’t like something it adds to the game. to the base game the basic story progression does not change. The expansion simply adds new upgrades, options, mission types, etc.
Do you have to play Enemy Unknown before Enemy Within?
