If it was described in gaming terms, the so-called "Evil Demon Hunter" could be seen as a hidden and advanced profession of a Demon Hunter, as the conditions of being one were very harsh.
Even if it were Titled Demon Hunters, each and every one of them might not be able to be as ruthless as Daybreak Sword, who even chased and hunted down Evil Demons.
Most of the time, they only had the power to fight against Evil Demons. They usually needed three to five people to join hands in order to increase their chances of winning the fight against an Evil Demon—this was only in regards to winning the fight. To kill an Evil Demon and claim its corpse as a war trophy would be too difficult.
"As an Evil Demon Hunter, it's the most important to be able to obtain a complete Evil Demon corpse and proceed with an ancient ritual for the sake of obtaining a higher rate of growth and power…"