1. Запустить файл css_update_v50-70_full.exe
2. Указать папку с установленным клиентом Counter-Strike: Source
3. Следовать инструкции установочника.

Source Engine Changes:
- Fixed a bug which caused Windows Aero Extensions video option to always be enabled, regardless of setting. Disabling this can improve compatibility with third-party programs and overlays, but may also affect performance.
- Fixed SourceTV showing player counts for the game server instead of the number of clients connected to the SourceTV server

Counter-Strike: Source:
- Limit the effective FOV of players using wide-screen resolutions with aspect ratios wider than 1.85:1. The sv_restrict_aspect_ratio_fov ConVar can be changed to remove the restriction or make the restriction also apply to full-screen players.
- Fixed a demo playback crash
- Changed the way bot counts are displayed in the server browser: the bot column is now next to the player column and always visible. Bot count is no longer subtracted from maxplayers.
- Adjusted error messages on servers when players drop due to Steam authentication failure to be more clear
- Additional important server messages now go to the server log instead of just the console
- Fixed the HUD radar not using the correct colors for players
- Fixed the HUD radar background disappearing after level change
- Fixed the class menu models not animating correctly

Что сделано в новой версии RevEmu:
- оптимизирован код
- убран призрак сетти
- добавлен SteamApps005 сервера его используют.
- исправлена возможность работы с garrys mod.
- при временно не работающей ПП, вылетов не будет, и сервербраузер отключаться то же не будет. В последних версиях к сожалению этот баг присутствует.