This Unreal 5.3 Gameplay Ability System video is about adding the Sense of Hearing to the AI Controller and having the Enemy move to where the Noise came from.
We start by updating the AI Controller Blueprint to add the Hearing Sense, then update the Behavior Tree, add a new Utility Task for clearing a custom Blackboard Value, finish updating the Behavior tree, and watch the silent noise events make things happen.
https://dev.epicgames.com/community/learning/tutorials/R5Gm/unreal-engine-19-enemy-senses-hearing-and-tracking-let-s-make-a-top-down-top-down-shooter