Here are some cheats and tips for the game Day of Defeat: Source.
Cheat mode:
Press “~” during game play to display the console window. Then,
enter one of the following codes to activate the corresponding
cheat function.
Effect Code
Change brightness lightgamma
Change frame rate fps_max <number>
Disable background sounds stopsound
MP# player mp3
Disable crosshair change “Space”cl_dynamic_xhair 0