Alright, Well, I decided to upload these for people to use.
Instead of using the regular HL1 sounds for the Viper I changed them to the regular ones. This should allow you to hear the viper when shooting it FROM YOUR POINT OF VIEW.
http://www.mediafire.com/?a2esopo6xn5frg2 (http://www.mediafire.com/?a2esopo6xn5frg2)
For those of you that really don't know where to put this... This would go in your garrysmod/garrysmod folder.
(https://forums.hypergamer.net/proxy.php?request=http%3A%2F%2Fs45.radikal.ru%2Fi109%2F0905%2F19%2Ff4982525c542.png&hash=0d30c055f55963c62803e2e411892fc425924b6f)
Good job marked one.
I love you so much right now