Aimbot. Including tank aimbot. 

HSK: AN94=51%, AK12=61%, MX4=52%, Groza4=67%  http://prntscr.com/h9pmjw

http://bf4cheatreport.com/?pid=1693420225&startdate=17111306&cnt=60   http://prntscr.com/h9pmzd

Newer Battlereports showing the AN94 usage with >50%HS : http://prntscr.com/h9zhdl

http://battlelog.battlefield.com/bf4/battlereport/show/1/929922394074834112/1693420225/

http://battlelog.battlefield.com/bf4/battlereport/show/1/929917831256622016/1693420225/