Using UE 5.6, I’ll quickly show you how to create a sci-fi radar pulse mechanic entirely in Blueprints.
This is how it works: When you press a key, the player sends out an expanding radar that detects and reveals hidden objects in the environment.
https://dev.epicgames.com/community/learning/tutorials/EW37/unreal-engine-fortnite-create-a-sci-fi-radar-that-reveals-nearby-hidden-objects-ue-5-6-blueprints