Fan Casting Half-Life : The Beginning

When Dr. Gordon Freeman, a scientist who is a research associate at the Black Mesa Facility in New Mexico, is assigned the task of helping out the scientists in the Anomalus materials lab with an experiment, things go horribly wrong when the artifact gets jammed into the emitters and opens a portal to Xen, an alien planet where an infestation has begun on the facility. Gordon along some other people he is going to meet along the way ...with their help , he has to find a way to stop all this madness ...before it's too late.