Mission Improbable is a singleplayer mod for Half-Life 2: Episode 2. In it, Gordon Freeman is tasked with re-activating a Resistance listening post. From there, things quickly escalate.

DylanTM says

10/10 - Agree (2) Disagree

Very nice mapping, great gameplay, great physics, good story, nice extras you wouldnt find in half life, like the start when you come in on the boat. Great work! Keep it up, 10/10!