Anomalous Materials

From Valve Developer Community

After the Black Mesa Inbound,Gordon was Taken to the Sector C Test Lab and Control Facilities Known as the Anomalous Materials Lab.It homes the artifact that started the sequel, the Anti-Mass Spectrometer. As Gordon travels in this place he can see that the G-man is arguing with a scientist, as Gordon goes deeper in sector C, He came to The Anti-Mass Spectrometer Test Chamber for a Sample from Xen will be analyzed but it causes the resonance cascade which tears the space time continuum thus allowing Xen creatures and attracting the Universal Union, Also known as The Combine.