Aimbotter.

http://battlelog.battlefield.com/bf4/battlereport/show/1/917107445185515200/888724859/

I can provide video material, too, if you feel it's needed. But I suspect by the time you read this he has been aimbotting more and you'll see it in his stats and I have a slow Internet so I will not upload unless requested.

http://battlelog.battlefield.com/bf4/battlereport/show/1/917105103979548352/888724859/ 83.33% DMG U-100 MK5

http://battlelog.battlefield.com/bf4/battlereport/show/1/917107445185515200/888724859/ 66% DMG U-100 MK5

http://battlelog.battlefield.com/bf4/battlereport/show/1/917086308804202176/888724859/ 103.7% DMG CS-LR4