As the publisher of the series, Electronic Arts offers the game through their official store. This version is reliable but requires the EA background service to run.
Once you use your download link and install the game, you might encounter a few "old game" quirks. Here is how to fix them: medal of honor allied assault pc download link
While many "abandonware" sites host the game, downloading from these sources can be risky. These files often lack the latest security patches and may contain malware. Given that the official "War Chest" frequently goes on sale for under $5 USD, purchasing a legitimate copy is the safest and most stable way to experience the game. As the publisher of the series, Electronic Arts