Player materials wallhack ?

Hello guys,

I was wondering where I could find the classic "CSGO Player MATWH" (The one where only the players were colored and could be seen through the walls without even being modified) but for CSS. I mean I'm tired of these walls skins and I would really appreciate if one of you could find that or explain how to make it myself. The only thing i know about is that there is something to do with the "alpha" of the skin.

Thanks in advance.