As per title, Should be useful if others run into the same issue:
I have a series of actors that are spawned randomly in multiple fixed positions. I was having a problem with what to do when the code had already spawned an Actor in the same position. After a while I solved it thus: *Make a Game Attribute List (Already Spawned?)
*Store Position Attribute in "Already Spawned?" list if not already stored
*Spawn Actor as normal
* If Position Attribute is already in "Already Spawned?" Game attribute then stop