Note:Sorry if the audio appears out of sync later on. <br /> <br />Barney Calhoun reaches the surface and encounters the HECU. He manages to fight through them and reach Dr. Rosenberg. He and a team of fellow scientists were trying to escape until the marines caught them. <br />Calhoun rescues some scientists who have been locked in railway cars in Black Mesa's classification yards. One of the scientists, Dr. Rosenberg (who is also a character in Decay), advises Calhoun that the entire facility is surrounded by Hazardous Environment Combat Unit Marines intent upon killing all base personnel to cover-up Black Mesa's research into extradimensional exploration. The only way to escape, Rosenberg explains, is to use an old prototype of the Lambda Complex teleporter; if it works, they can reach an obscure entrance to Black Mesa which (hopefully) has been overlooked by the Marines.
