1 - You must have a score equal to or above 500k.
2 - Your ratio must be equal to or below 25. One way of checking if you have a good enough ratio is doing (Score/Kills)/1000 and if the output is smaller than 25, you have a good enough ratio.
3 - No exploits and illegal tactics like feeding, witch-hunting, basecamping, or spawnkilling/spawncamping.
4 - Records done in the Testing server will be invalidated.
Note that assists count as 1/4th of a kill and boss kills count as 3 kills.