Bilian's L4D2 Sound & Music Replacement Mod Plus v1.1, now updated for "The Sacrifice" DLC, features the enhancement/replacement of over 1,700 sound files plus 15 custom texture files. It contains months of original work, extensive editing and sound design by a professional recording artist. It is NOT a compilation of other mods. Download & install it to give Valve's Left 4 Dead 2 PC game a fresh, new terrifying sound & look. There are 7 videos available extensively demonstrating Left 4 Dead 2 gameplay with these sounds. Just search " bilian's " on youtube.com to hear & see the mod in action. This soundpack will also be made available as a VPK add-on.
Newest video featuring some changes in mod v1.1: