Lambda Core

Lambda core is the fourteenth chapter of Half-Life, and the final chapter in the Black Mesa Research Facility.

G-Man

 * Seen distantly walking into a teleportation portal. This is a significant sighting for two reasons; one, it is the first time G-Man is seen using his distinctive teleportation portals, which appear to be how he moves so quickly and efficiantly. two, a Headcrab, which is normally very aggressive, is right next to him the whole time, but does not even appear to notice him.