Which things to download to create a level for Unreal Tournament ?

Hi, I am a beginner in map editing, i’d like to create some level for Deathmatch in Unreal Tournament, so I want to follow the tutotial, but I don’t have in Unreal Engine what they ask in the tutorial (the tutorial map is not inside, and also the “UTTeamPlayerStart” and everything they use… I don’t know if I am understandable, I just ask if I missed something, do I have to instal any other things inside Unreal Engine ?

PS : I followed this tutorial

go to the ue4 launcher, go to the unreal tournament tab up top, click on create on the left side and install that editor