1.) GO to C:\Program Files\Steam\steamapps\common\left 4 dead\left4dead\materials\models\infected\ put the boomer file in there if u dont have the folders make them.

2.) now go to C:\Program Files\Steam\steamapps\common\left 4 dead\left4dead put the withe list in there.

3.) 3) Now, look for pak01_dir.vpk in the same folder. Open it using Notepad ++ to open it. Make sure you backup the original pak01_dir.vpk file.

4.) When you opened up pak01_dir.vpk with Notepad++, press Ctrl+h to find this line:

$baseTexture "models\infected\boomer/Boomer2"
$bumpmap "models\infected\boomer/Boomer_normal"
$allowdiffusemodulation 0
$phong 1
$phongfresnelranges "[.01 .15 1]"
$phongtint "[.8 .8 1]"
$phongboost 14
$phongexponent 16

Change it so it looks like this.

Enjoy your new skin....