How many Call of Duty games do not feature zombies?
1
1
3
4
1
3
4
2
1
3
4
2
1
3
4
2
1
3
4
2
1
3
4
2
1
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
0
3
4
2
1
5
3
4
2
1
7
0
5
3
4
2
1
7
0
5
3
4
2
1
6
7
5
0
3
4
2
1
6
7
5
3
4
2
1
6
7
0
8
5
3
4
2
1
6
7
8
0
5
3
4
2
1
6
7
8
5
0
3
4
2
6
7
8
5
2
6
9
7
0
8
5
6
9
7
8
0
5
6
9
7
8
5
0
6
9
7
8
5
6
9
7
8
5
6
9
7
8
5
6
9
7
8
6
9
7
10
8
6
9
7
10
8
6
9
7
10
8
6
9
7
10
8
No
13
6
9
7
10
8
No
13
11
6
9
10
8
No
13
11
6
9
10
8
No
13
11