StarCraft: The Gun is a fan fiction series currently in development by thedarkarcon47. It tells the tale of a skilled Terran Assassin named John "The Gun" Breco, along with his organization, the GunMetal Gang, and their quest to defeat the Zerg Cerebrate Makutai.
Much of the story is still shrouded in mystery, however, Jim Raynor and Zeratul are said to have major roles in the series.