haha, sorry about that! I wanted to do that but it would have taken a lot of time to implement, and since I wanted to release the mod with the release of HL:A, and seeing as to how I was a day late already, I had to drop a few feature support! Previously, I also wanted to remake the gun model so that when it hits a metal surface, it makes metal sound + throws sparks, for concrete it makes concrete hit sound + concrete is flown into the air, when it hits a physic enabled object, such as the barrel, the barrel is thrown forward, etc, but as you can see, I only could implement flesh hitting impact + concrete debris, and nothing else!
Hopefully, everything else was to your liking?