(トップダウンビューで)マウスカーソルの方向にオブジェクトを向ける

How to make an actor to look at the mouse cursor ? – UE4 AnswerHub
https://answers.unrealengine.com/questions/355950/how-to-make-an-actor-to-look-at-the-mouse-cursor.html

• “Get Hit Result Under Cursor by Channel” と “Find Look at Rotation” を組み合わせる。