From a total of 417,293 kills with 169,670 headshots

Rank	Weapon	Modifier	Kills	%	Ratio	Headshots	%	Ratio	HS:K
1		1.20	99,694	23.89%		55,343	32.62%		0.56
2		1.00	94,185	22.57%		16,132	9.51%		0.17
3		1.00	76,213	18.26%		39,163	23.08%		0.51
4		1.00	44,996	10.78%		23,471	13.83%		0.52
5		2.00	25,031	6.00%		0	0.00%		0.00
6		1.20	11,673	2.80%		5,592	3.30%		0.48
7		1.20	10,559	2.53%		4,802	2.83%		0.45
8		1.40	7,598	1.82%		4,156	2.45%		0.55
9		1.10	5,807	1.39%		2,032	1.20%		0.35
10		1.10	4,336	1.04%		2,168	1.28%		0.50
11		1.40	4,137	0.99%		2,325	1.37%		0.56
12		1.40	4,136	0.99%		2,156	1.27%		0.52
13		1.20	3,538	0.85%		1,659	0.98%		0.47
14		1.10	3,117	0.75%		1,697	1.00%		0.54
15		1.50	2,835	0.68%		1,502	0.89%		0.53
16		1.00	2,728	0.65%		1,487	0.88%		0.55
17		0.80	2,700	0.65%		848	0.50%		0.31
18		1.00	2,350	0.56%		1,142	0.67%		0.49
19		1.20	2,193	0.53%		762	0.45%		0.35
20		0.80	2,105	0.50%		591	0.35%		0.28
21		1.80	2,080	0.50%		0	0.00%		0.00
22		1.00	1,715	0.41%		812	0.48%		0.47
23		1.50	1,345	0.32%		699	0.41%		0.52
24		1.50	830	0.20%		429	0.25%		0.52
25		1.50	784	0.19%		434	0.26%		0.55
26		1.20	605	0.14%		268	0.16%		0.44
27		10.00	2	0.00%		0	0.00%		0.00
28		5.00	1	0.00%		0	0.00%		0.00