Tutorials - 7 Tasks Source Mod for Half-Life 2

Charlie Crown is a scientist working for the Hypothesis Research Facility, a company engaged by the government to run top secret research projects. He becomes involved in a mission to recover certain sensitive materials; materials which may have originated from an alien dimension which could be used to create havoc. This mission leads him to encounter a number of aliens and zombies and other creatures who all seem bent on making Mr Crown history.