Operation: Black Mesa is a total Source remake of Half Life: Opposing Force. Using the Source engine, the developers plan to recreate the Black Mesa research Facility as it was seen by Corporal Adrian Shephard of the H.E.C.U. Half-life: Opposing Force is still an amazing game, although it is not nearly as amazing as it was when it was released.
AMAZING
Hm that area looks somewhat similar to the area where you encountered the Pit Drones for the first time.
As for the fog itself. Lovely work. It looks stunning though color wise it looks more fitting with some cold storage area facility not sure.
Really nice
Office Complex vibes, where you'll get in that frozen area full of weird stuff ya know.