Der Schwarze Nebel is a mod for Valve's Half-Life 2: Episode Two, that presents a mix of Cinematic Mod and beta related content of Half-Life 2.
A slightly updated old 1.82 build. Some levels were deleted from this build in order to reduce the file size for Moddb download section.
Overall it's the same build with some low quality levels cut. If I've managed to do everything right, the download should work just fine.