1. Extract everything somewhere.<br />

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2. Know what version you have of the game.<br />

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(If updated game on Steam then 1070.)<br />

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2 bis. You can also downgrade your game to 1040 for best graphics if you don't mind about MP.<br />

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3. Copy the content of the folder you choose depending of your version<br />

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4. Paste it in the root of your game.<br />

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5. Replace if it asks ( BE CAREFUL THAT YOU SHOULD HAVE BACKUP YOUR GAME BEFORE YOU DO SO)<br />

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6. Launch your game.