Black Mesa: Source Walkthrough Part 1 (No Commentary) [1080p]{HD}

Black Mesa: Source Walk-through Part 2: http://youtu.be/HcvA923Uph8 (Please Subscribe to this channel and thumbs up this video.) This is the updated version of Black Mesa: Source. It is now considered a standalone game. My PC Specs: AMD FX 8350 Black Edition 4.0Ghz Radeon HD 7790 1GB OC 8GB DDR3 RAM 1TB WD Black Hard Drive