Half Life 2 Episode 2
Mission Improbable is a single-player mod for Half-Life 2: Episode 2 that spans three maps. In it, Gordon Freeman is tasked with reactivating a Resistance listening post, which naturally doesn\'t go quite as intended.
Mission Improbable Part 2 (May 2010) Includes both parts 1 and 2. It is planned over three maps, with each map being released individually. Currently two out of the three maps have been released, Mission Improbable and Reverse Advance.