This mod version is actually two mods, raised_fist and rf_infiltration. You will need both installed on your computer to make the new rf_frostbite map work.
To install the mod, extract the ZIP file to any folder on your computer. You must copy and paste the raised_fist and rf_infiltration folders to your Mods folder, located by default @ C:\Program Files (x86)\EA GAMES\Battlefield 1942\Mods\.
An event might soon be hosted to test the map, as soon as it has thoroughly been tested online. Visit Team-simple.org for more info.