So I'm working on a big SFM project as some of you know. I downloaded some maps that I want to use (dm_cloudsdale for example), but when I load it it says it doesn't have HDR lighting and it looks god awful. I know I have to use Hammer to add it into the map but I don't know a damn thing about map editing. I think I figured out how to add it but when I export it (or run it or whatever) it comes out a ".vmf" file, when I need a ".bsp" to have it work.
If someone that knows what the hell they're doing can just walk me through from the beginning I would greatly appreciate it!