File:Opposing Force dam.jpg

Summary
A screenshot of Half-Life: Opposing Force. The player is using a M249 Squad Automatic Weapon, one of the new weapons featured in the game, and is currently commanding the two Marines. The Marines are attacking a squad of Race X creatures off-screen to the left. The dam, an area seen in Half-Life, has become increasingly battle damaged since the player passed it in Half-Life, and is ultimately blown up at the culmination of this stage.