While many "abandonware" sites list the game, it is still actively sold and supported on modern storefronts, making official purchases the safest way to avoid malware.
If you are using an ISO version, download the Commandos official patch 1.2 from a reputable site (like PCGamingWiki) to remove CD checks. commandos behind enemy lines download
A: Usually, no. Beyond the Call of Duty is a separate expansion (8 extra missions of extreme difficulty). Buy the "Commandos Collection" to get both. While many "abandonware" sites list the game, it