I downloaded this one:
http://www.fpsbanana.com/mirrors/startd ... 66&ext=zip
Dezip it. It will made a hl2mp folder containing two folders, one named models and another one amed materials. Just copy those two folders in your "HL2 Deathmatch/hl2mp" directory.
Keep a copy of the archive, in order that if you want back the normal players skin for you just have to look after the files contained in the archive on your hl2mp directory an delete them. ( thus don't delete whole materials and models folders, you may loose other downloaded stuff like textures decals, ...)
For the other models, I just tryed one, the Zero combine soldier. For this one, just do what it is said in the readme text, ...
This model don't alter the player body(the first skin pack I talked about modify the body, bigger boops, dress unfiged ...), like the first one does, it just change the texture on the body.
This method ca, be used to turn all the players of a team in one color very flashy, by example pink for one team and pure green for the other. really not beautifull, but a lote easier to determine the team of each players.
La misere des amis n'est pas plus amusante qu'un jardin dont la flore est mourante.