It is just another try to escape from the Black Mesa. Would the nameless scientist save himself with your help?
Would have easily given this a 10 if it weren't for two things. First, don't upload your config.cfg file with your mod. Some people may use different controls and mouse settings and it's annoying to have to reset them. Second, a couple of issues getting into some of the vents near the start, requiring you to crouch and then jump to get in. Otherwise, I loved it. I hope you continue because the ending was a bit of a downer. :P