If you were asking yourself "Was the Black Mesa the only facility complex of its kind on earth?", Well, the answer is 'No'. The number of cooperating facilities and laboratories from all around the world, was enormous. Welcome to the Black Mesa Arctic Complex, the coolest place on earth!
This is WIP of the first pre-disaster map, roughly 50%. After leaving the train you learn that due to the system malfunction some of the doors are locked. Following Otis' advise, you're taking a longer route through the loading bay.