Hello, in this Guide I will show you how you can change you fov (Field of View) in MW3.
You can t get a ban !

At first you need winrar or other picking programms.
Winrar Download: http://www.chip.de/downloads/WinRAR-32-Bit_12994655.html

Now you can download the FOV changer: http://www.mapmodnews.com/article.php/Modern-Warfare-3-FoV-Changer-MP
When you have download the file you must open it.
When you have open it you can change the game mod (singel and multiplayer).
Now you can set the FOV like your choice.
At least you klick on Start the Game. Then you have changed you fov.

Have fun with the FOV changer. :-)