hi, what is a prop?
How to add a prop when you destroy an enemy?
Just like when you kill an enemy, it will disappear and fall down an object.
Create actor blueprint class and call it “BP_Prop”
Then add static mesh component to it, call it “SM_Prop” and replace the DefaultSceneRoot with it.
When you destroy enemy, call “Spawn actor from class” and set the class to be “BP_Prop” and transform the same as enemy transform. Then drag from the return value and “Set static mesh (SM_Prop)” and then you can choose the prop mesh you want to use! Hope this helped 
No matter how . Thank you very much !