The Core is a total conversion single-player mod for Half-Life. Survive the disaster as Maurice Andrews, a low level engineer stationed in Black Mesa during the events of the resonance cascade. Seemingly trapped, Andrews must fight his way to the surface to survive.
This facility is under military command. My command. It has come to my attention that some of the former employees of this fine establishment have refused to submit themselves to my men and are in fact planning some sort of rebellion. Make no mistake, this is a futile endeavour. Relinquish your weapons and surrender yourselves to the friendly platoon who will be with you shortly. You are all a threat to national security and if you love your country you will lay down your arms.