How to make GameMode BP register a destroyed object

I’m trying to create a count down system for once a object has been destroyed. My system works, but my only issue is trying to create a functional Blue Print that registers once “cube enemy” has been destroyed.
Down below is what I have currently

instead of destroying your actor, you could hide every one of its components

In this instance I believe that wouldn’t work, for what I’m trying to achieve I need the game mode BP to identify a objects destruction “Cube Enemy”.

Don’t create multiple threads for the same question: