The computer game Battlefield 1942 pits players against each other in multiplayer recreations of World War II scenarios. The game's massive maps feature scenery from all over the world and give players access to historic land and air vehicles. While the game includes a large selection of maps, community-made add-ons can greatly expand the game's variety and replayability. Download custom Battlefield 1942 maps from the Internet and install them on your hard drive to play them.
Download a custom map from a Battlefield 1942-related website (see Resources). Ensure that the map you choose is designed specifically for Battlefield 1942.
Extract the map file. Most map creators compress map files using ZIP or RAR. To unZIP a compressed archive in Windows, right-click on the file and choose "Extract" from the pop-up menu.
Transfer all the files with an RFA extension to the "levels" folder located in the Battlefield 1942 installation directory. By default, this path is "Program Files\EA Games\Battlefield 1942\Archives\bf1942\levels." If the map is meant for use with a previously installed user-made mod, place the map in the "levels" folder inside the mod's directory instead.
Start Battlefield 1942. Click "Multiplay" in the main menu and select "Create Game." Double-click on the custom map in the "Levels" box to add it to the game. Change the game's other settings as desired and click "Start Local" or "Start Internet" to begin play. Other players will need the same custom map installed in order to connect to the game.