Kill,2,1000,5000
Headshot,3,1000,5000
Kill,2,1000,10000
Headshot,3,1000,20000
Headshot,3,1000,30000
Headshot,3,1000,40000

[
	[
    	"Headshot,3,1000,5000",
        "Kill,2,1000,5000"
    ],
    
    [
    	"Headshot,3,1000,5000"
    ],
    
    [
    	"Kill,2,1000,10000"
    ],
    
    [
    	"Headshot,3,1000,20000"
    ],
    
    [
    	"Headshot,3,1000,30000"
    ],
    
    [
    	"Headshot,3,1000,40000"
    ]
]

flatten ->

[
    	"Headshot,3,1000,5000",
        "Kill,2,1000,5000"
    	"Headshot,3,1000,5000"
    	"Kill,2,1000,10000",
    	"Headshot,3,1000,20000"
    	"Headshot,3,1000,30000"
    	"Headshot,3,1000,40000"
]