How many Call of Duty games are there?
24
3
3
2
3
2
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
6
3
2
1
5
4
6
3
2
1
5
4
7
6
3
2
1
5
4
0
7
6
3
2
1
5
4
7
6
3
2
0
1
5
4
7
6
3
2
1
5
4
7
6
3
2
8
1
5
4
7
6
2
8
1
5
4
7
6
10
9
8
1
5
4
7
6
10
9
8
1
5
7
6
10
9
8
1
7
6
10
9
8
1
7
6
10
9
8
1
11
13
7
6
10
9
8
1
11
12
13
7
6
10
9
8
1
16
11
12
13
7
6
10
9
8
1
16
11
12
13
7
6
10
9
8
1
16
11
12
13
7
6
10
9
8
14
16
11
12
13
7
66
62
256
59
66
62
58
63
512