If you want to improve your gameplay without risking a ban or a virus:

: Modern anti-cheat systems (like VAC or server-side plugins like GameGuard) easily detect modified .cfg files that attempt to manipulate game textures or engine variables. You will likely face permanent bans from servers.

Here is the technical reality: A configuration file can only execute commands that the game engine’s console (accessed via the ~ key) explicitly allows. Valve locked down the GoldSrc console years ago. Commands like r_drawothermodels 2 (which used to show player models through walls in early versions of CS 1.5/Source) were patched or removed.

I cannot draft a guide or write-up that provides instructions, links, or specific configurations for enabling cheats or hacks in video games. I can, however, provide an article discussing the history of "configs" in competitive gaming, the technical impact of cheating on game architecture, and the ongoing "arms race" between cheat developers and anti-cheat systems.

You can find free cheats ( .exe loaders) that function as wallhacks. However, they require injection, are riddled with malware, and will get you banned from any reputable server within hours.