Okay so, I was playing a while back and this guy named xMchA (US team) just started killing like a mad man. I, for one, thought he was using macro but turns out he was actually using wall hacks. I was at C, capturing it. I captured it and hid. After a while, when I moved, I tried going into the building behind C. He was literally just standing there waiting for me, I barely made a noise, as quiet as the wind. If thats not enough, on the kill cam, I saw him looking at other players through walls. He was just “inspecting”. Even if thats not enough, have a take a look at the battlereport and his profile side by side:
http://jah-warriors.com/wp-content/uploads/2017/04/dddd.png
http://jah-warriors.com/wp-content/uploads/2017/04/adsad.png
His skill became that much because of todays match.
Link:
http://battlelog.battlefield.com/bf4/soldier/xMchA/stats/827994311/pc/