Hacks

How do I know what works and what doesn't I use this source
http://www.mpgh.net/forum/showthread.php?t=1292248

Everything but you would get VAC banned unless you make it UD

use it and see if it works.

Open Source Code
Add Junk
Compile
Go ingame open Menu
Look whats working and whats not
Play MM
Get VACed