Hello Benjamin,
Thank you for contacting Electronic Arts.
I understand the frustration which you have gone through. I assure you my continual support in resolving this issue.
As per your concern, you want to report a Hacker in Battlefield 3. Please refer below mentioned steps to report Hacker in Battlefield 3.
http://help.ea.com [help.ea.com] Select Contact Us.
Login
Input the name of the game - Battlefield 3
Category - Game play/In-game
Platform - PC, Xbox 360 or PS3
Choose 'Email Me'.
Add a link (or attach the file) of video or screenshots (screenshots of the battle report can work)
Add some info. Don't flame, rage or blast the support agent who will be getting your case. They aren't the ones cheating. Compose your case logically. Our Anti-Cheat and TOS teams will investigate.
You will NOT be informed of ANY action on the potential violator's account. (We wouldn't tell anyone what action would be taken on your account if the situation were reversed.)
In case you have any questions regarding this issue, please feel free to contact us again.
It was wonderful assisting you. At Electronic Arts, we express gratitude for your interest and request the same in the future. To know more about our online Knowledge Base, please visit:
http://help.ea.com/.
Regards,
Manoj
Electronic Arts- World Wide Customer Experience