This player has super high HSKR scores with his guns: 

http://prntscr.com/l99lea

These are some battlereports with very high accuracy percentages:

http://battlelog.battlefield.com/bf4/battlereport/show/1/1049447409526630592/1015459102/

http://battlelog.battlefield.com/bf4/battlereport/show/1/1054472994651482496/1015459102/

http://battlelog.battlefield.com/bf4/battlereport/show/1/1054555038979041664/1015459102/

Here is some useful stuff for reference: 

http://bf4cheatreport.com/?pid=1015459102&uid=&cnt=200&startdate=201810212002

http://battlelog.battlefield.com/bf4/soldier/MenaceInVenice/stats/1015459102/pc/

In conclusion it only took about 15m of playing against this player to determine that something was fishy. He has beyond belief hacker scores, and without a doubt is cheating his ass off.

https://bf4db.com/player/1015459102/snapshot/18775