Gunman Chronicles is a futuristic first-person shooter computer game using the Half-Life game engine. It was originally planned as a total conversion for Quake; it then switched games to Quake II, followed by another switch to Half-Life, before being spotted by Valve Software and released as a stand-alone retail product in 2000.
This addon will change the default low resolution main menu background that Gunman Chronicles comes with to an HD background that looks really good on higher resolutions. Check the screenshot to see what this main menu background looks like. Check the description for installation instructions. I am not the author of this file and take no credit for it.