From a total of 69,130,670 kills with 31,359,136 headshots

Rank	Weapon	Modifier	Kills	%	Ratio	Headshots	%	Ratio	HS:K
1		1.00	26,328,877	38.09%		4,443,007	14.17%		0.17
2		1.20	12,137,208	17.56%		8,588,924	27.39%		0.71
3		1.00	8,436,562	12.20%		5,907,239	18.84%		0.70
4		1.00	6,765,652	9.79%		4,614,028	14.71%		0.68
5		1.20	4,289,249	6.20%		2,077,075	6.62%		0.48
6		1.50	1,163,393	1.68%		733,176	2.34%		0.63
7		1.40	1,159,474	1.68%		785,775	2.51%		0.68
8		1.20	1,078,037	1.56%		552,534	1.76%		0.51
9		2.00	922,795	1.33%		13	0.00%		0.00
10		1.00	735,268	1.06%		549,575	1.75%		0.75
11		1.80	714,799	1.03%		0	0.00%		0.00
12		1.20	696,021	1.01%		339,441	1.08%		0.49
13		1.00	571,571	0.83%		412,441	1.32%		0.72
14		1.00	569,039	0.82%		369,214	1.18%		0.65
15		1.10	539,216	0.78%		461,140	1.47%		0.86
16		1.40	494,753	0.72%		323,731	1.03%		0.65
17		1.10	448,687	0.65%		268,641	0.86%		0.60
18		1.50	407,931	0.59%		230,902	0.74%		0.57
19		1.40	360,535	0.52%		264,604	0.84%		0.73
20		1.10	304,735	0.44%		98,217	0.31%		0.32
21		0.80	251,292	0.36%		63,643	0.20%		0.25
22		1.20	239,867	0.35%		77,377	0.25%		0.32
23		0.80	220,562	0.32%		50,959	0.16%		0.23
24		1.20	121,497	0.18%		48,943	0.16%		0.40
25		1.50	108,297	0.16%		61,638	0.20%		0.57
26		1.50	65,325	0.09%		36,899	0.12%		0.56
27		5.00	26	0.00%		0	0.00%		0.00
28		5.00	2	0.00%		0	0.00%		0.00