From a total of 7,400,116 kills with 2,671,138 headshots

Rank	Weapon	Modifier	Kills	%	Ratio	Headshots	%	Ratio	HS:K
1		1.00	2,659,387	35.94%		410,950	15.38%		0.15
2		1.20	1,043,221	14.10%		591,634	22.15%		0.57
3		1.00	933,779	12.62%		535,019	20.03%		0.57
4		1.00	754,442	10.20%		353,485	13.23%		0.47
5		1.20	560,891	7.58%		267,267	10.01%		0.48
6		1.20	447,410	6.05%		212,380	7.95%		0.47
7		1.80	194,344	2.63%		1	0.00%		0.00
8		0.80	155,789	2.11%		42,982	1.61%		0.28
9		0.80	93,136	1.26%		29,105	1.09%		0.31
10		1.00	67,933	0.92%		31,347	1.17%		0.46
11		2.00	55,656	0.75%		0	0.00%		0.00
12		1.50	48,701	0.66%		22,697	0.85%		0.47
13		1.00	39,776	0.54%		17,613	0.66%		0.44
14		1.40	36,467	0.49%		15,997	0.60%		0.44
15		1.10	36,357	0.49%		15,539	0.58%		0.43
16		1.00	34,857	0.47%		16,931	0.63%		0.49
17		1.40	30,717	0.42%		15,430	0.58%		0.50
18		1.10	30,416	0.41%		16,890	0.63%		0.56
19		1.20	28,142	0.38%		8,816	0.33%		0.31
20		1.50	26,601	0.36%		12,448	0.47%		0.47
21		1.20	23,328	0.32%		9,844	0.37%		0.42
22		1.10	22,729	0.31%		8,430	0.32%		0.37
23		1.50	21,774	0.29%		10,044	0.38%		0.46
24		1.40	19,059	0.26%		9,673	0.36%		0.51
25		1.50	17,830	0.24%		9,238	0.35%		0.52
26		1.20	17,374	0.23%		7,378	0.28%		0.42