If you must save data, use verified repack sites that maintain the game's integrity. These will typically be around 12 GB to 15 GB , not 500 MB.
The Reality of "Battlefield 3 Highly Compressed 573 MB" Files Battlefield 3 Highly Compressed Pc Games -573 Mb-.epub
The file extension was the first red flag. .epub is for e-books, not Frostbite-engine war simulations. But the promise was intoxicating. 573 MB for a game that redefined cinematic first-person shooters? It felt like alchemy. If you must save data, use verified repack