How to make a weapon that can penetrate

Any tutorial/way to make a class system in source engine singleplayer 2013 (community edition)

Hammer не может прочитать .prt файл

GUYS I NEED HELP

[Linux] No 5.1 surround sound

how do i make smaller sizes for parts in hammer classic it just snaps its to big

movable sky_camera

Помогите портировать карту с движка голдсоурс на соурс!

Hammer++ for DIPRIP Warm Up Possibly?

What's up everynody. It's ya boy m8nkey. Back with another one

where is the code to player movement and camera?? and how to modify?

TF2 SDK crashing after startup movie.

Light Switch Prop Change