: The most popular "free" way to experience MW3 mechanics is through Call of Duty: Warzone . While it is a standalone Battle Royale, it uses the same engine, weapons, and movement systems as MW3. It is 100% free to download on Battle.net and Steam.
When you see websites promising a "full game crack" or a "repack" for free, you should proceed with extreme skepticism. Here is why:
: If you are a member of Xbox Game Pass for PC , MW3 is often included in the library. While the subscription has a monthly fee, it is a "free" addition for those already paying for the service, providing the full campaign and multiplayer experience. The Risks of "Free Full Game" Downloads