No. It isn’t. I will agree that the Mp5 distant gunshot is much too quiet, but the shots are present for all weapons. I already confirmed it in this thread, but apparently you need proof.
So here’s proof - I went to bm_c2a5a, turned off the soundscapes (though one ambient noise stayed on, I guess it was an ambient_generic) and tested it out again - Watch and listen closely.
Again, I have already confirmed this to not be the case. Hell, I even gave you a modified HL2 pistol sound to prove it! The engine uses a single stereo wav file and blends between the near and distant gunshots via the left and right sound channels. As I’ve shown in the video above, Black Mesa has utilized this system.
Does the system need improvement in term of volume? I’d say so. But it is present, so please stop ignoring what I’m saying.
I’ve been working with Source for years now, I know at least some of my shit.