http://battlelog.battlefield.com/bf4/battlereport/show/1/1021007904762465216/890651163/

player using aimbot

50% headshot rate. 208 kills and 101 headshots

http://battlelog.battlefield.com/bf4/battlereport/show/1/1020993974879137984/890651163/

14 Kills with lmg and a minimum of 9 Headshots? Makes it 64%

http://battlelog.battlefield.com/bf4/battlereport/show/1/1021002521339769024/890651163/

13 kills and 12 with lmg at an accuracy of 5% and still more than 9 headshots? Makes it 69%

http://battlelog.battlefield.com/bf4/battlereport/show/1/1020998209762997056/890651163/

62 kills which 31 were with shotgun so the possibility of a headshot is way lower so the 21 heashots go mainly to the other weapons which is still.... more than 34% headshots, but assumably most of the headshots are on the 31 kills with other weapons which is way over 60%