This guy was instant killing me, a few others were reporting this too. Didn't get any video, and his reports don't conclusively show this, however on his MG4 stats, he has 36277 shots with 633 kills, with an accuracy of 2.08%. Doesn't that mean he only has 755 hits with the MG4? If so (and I've missed something) then that supports what I've experienced in-game.

Thanks

Report him through his profile

Oops forgot to leave a link, sorry about that. I see he's banned now so thanks, wasn't aware I could report through profiles on here, I'll do that in the future. 

Thanks

Please report the user via his BF4DB profile. You can find his profile by using the search bar on the homepage. If you find the profile, you see a report button. Click that button, and put your evidence in the textbox.

Here is an example of my BF4DB profile, and the report button: