XCOM: Enemy Within Commander Edition (PS3) contains the main game Enemy Unknown, the DLC's (Slingshot, Elite Soldier, Second Wave) of the main game and the addon Enemy Within. And that's all integrated so that it feels like a full game, a refurbished Enemy Unknown. Neither the addon nor the DLC's are individually selectable, it's all in the game with the advancing season / -Experience unlocked.
In the PC version is far as I know no main game here, so when the PS3 version also
the additional 'Commander Edition'.
This XCOM game is in my view to the perfect XCOM game.
11/10 points.
Over and Out ~ =)