Spawn mutiple characters on different positions?

Hi! Sorry if this is a trivial question, new to UE4.
I want to spawn six different characters at six different spawn points but I want it to be random which character spawns at which spawn point. I’ve done so much as this tutorial UNREAL ENGINE 4 :-Random spawn of a bluprint using target points - YouTube but then my characters can spawn on the same spots. I want to destroy one integer after it has been used if that is possible. Does anyone have a good setup for this?