Adrian Shephard is a fictional character from the video game series Half-Life. He is a soldier working for the Hazardous Environment Combat Unit (HECU), which is tasked with containing the events surrounding the Black Mesa Research Facility incident. Shephard is the protagonist of the expansion pack titled Half-Life: Opposing Force, where players experience the story from his perspective. In the game, Shephard navigates through various challenges, including alien creatures and military adversaries. His character is notable for being a human soldier caught in a chaotic situation, providing a different viewpoint compared to the main character, Gordon Freeman.