I don t think you people get it Metalcore is a genre that incorporates mixes of Extreme Metal music and Hardcore Punk music where as Deathcore is a mixture of Metalcore and Death Metal music They play under the genre Metalcore as they use these blends such as screamed and clean vocals added in with a sound that is a fusion of Hardcore Punk and Metal I don t know where the genre Melodic Hardcore came in on this page but it s wrong I don t care if a website says it s that IT ISN T TRUE