A skin for the Thug model based on one of the Recon soldiers in Half-Life made by DirtyDog.
Just unzip all the files to your kingpin folder and they will be placed in the correct locations.
Easiest way to select these skins is to:-
Pull down the console (tilde key ~)
Type in :-
skin "male_thug/hl1 hl1 hl1"