The file name provided exhibits several "red flags" typical of malicious downloads:
EA officially removed the game from its Origin (now EA App) storefront in 2014. It is currently considered "abandonware" by the community. DOWNLOAD FILE – BATTLEFIELD 1942.ZIP
A legitimate Battlefield 1942 installation (including expansions) is typically 1.2GB to 2.5GB . If the file you are looking at is very small (e.g., under 50MB), it is likely a downloader designed to install unwanted software on your PC. The file name provided exhibits several "red flags"