From a total of 7,399,126 kills with 2,670,761 headshots

Rank	Weapon	Modifier	Kills	%	Ratio	Headshots	%	Ratio	HS:K
1		1.00	2,659,034	35.94%		410,893	15.38%		0.15
2		1.20	1,043,093	14.10%		591,555	22.15%		0.57
3		1.00	933,577	12.62%		534,903	20.03%		0.57
4		1.00	754,384	10.20%		353,459	13.23%		0.47
5		1.20	560,878	7.58%		267,264	10.01%		0.48
6		1.20	447,387	6.05%		212,371	7.95%		0.47
7		1.80	194,323	2.63%		1	0.00%		0.00
8		0.80	155,766	2.11%		42,971	1.61%		0.28
9		0.80	93,124	1.26%		29,101	1.09%		0.31
10		1.00	67,918	0.92%		31,337	1.17%		0.46
11		2.00	55,631	0.75%		0	0.00%		0.00
12		1.50	48,696	0.66%		22,695	0.85%		0.47
13		1.00	39,765	0.54%		17,607	0.66%		0.44
14		1.40	36,463	0.49%		15,996	0.60%		0.44
15		1.10	36,344	0.49%		15,532	0.58%		0.43
16		1.00	34,839	0.47%		16,921	0.63%		0.49
17		1.40	30,710	0.42%		15,426	0.58%		0.50
18		1.10	30,391	0.41%		16,873	0.63%		0.56
19		1.20	28,137	0.38%		8,813	0.33%		0.31
20		1.50	26,596	0.36%		12,444	0.47%		0.47
21		1.20	23,325	0.32%		9,843	0.37%		0.42
22		1.10	22,720	0.31%		8,428	0.32%		0.37
23		1.50	21,770	0.29%		10,041	0.38%		0.46
24		1.40	19,057	0.26%		9,672	0.36%		0.51
25		1.50	17,828	0.24%		9,237	0.35%		0.52
26		1.20	17,370	0.23%		7,378	0.28%		0.42