In this tutorial, we’ll cover building landscapes, basic materials, a little Verse, and many more tools essential to upgrading from working in Fortnite Creative 1.0 to within Unreal Engine for Fortnite (UEFN). We’ll do that while building a Red Vs. Blue map from the ground up. I’ve skipped some parts that you could do in either UEFN or 1.0, but this should help jumpstart you into working with UEFN.
https://dev.epicgames.com/community/learning/tutorials/OvnM/fortnite-creative-1-0-to-uefn-tutorial-level-up-by-building-a-red-vs-blue-map