Open the console and type "record name" where name is anything. Then, when you're done with your recording, type "stop". The DEM file will be saved in "C:\Program Files\Steam\steamapps\NAME\counter-strike source\cstrike". Read below to see how to play the files!
How to see that they wallhack:
Place the DEM files in "C:\Steam\SteamApps\NAME\counter-strike source\cstrike", then start Counter-Strike: Source, type "playdemo name" in your console, but without the " (if you don't know how to open your console, check out a guide on how to Open the Console).
When the demo is being played, type "sv_cheats 1" then "mat_wireframe 2" in your console.
Now you can see that they wallhack!
Thanks to Wrox for this guide!





