1. no_hud_tool is a background utility written for Crossfire that allows you to hide hud elements if you want to take screenshots or capture cinematics2. selecting the widescreen option during the installation enables the general widescreen support 3. the wide screen fix is a tool that generates more natural fov settings for widescreen resolutions when cut scenes or scenery animations are played (its an optional fix)4. manually editing the perfoption usually is not required. However, there are s…