Thank you @Flak! So I assume that counts for both map controller and without it?
@Hardcawcanary Thank you for that elaborate post! My workweek started, but I have an Easter vacation coming up. Plus atm trying to finish the Easter game, but I probably won’t get it ready.
I will try the fixes once that one is done! And the raving on, is always a good thing, usually helps with debugging. ‘Thinking out loud’ :D.
When I read your comment about the water bodies, I think what I made should work. I have not had any issues with them. But I can re-check it next week.
I will also try the triggering options. But when I did before and tested that 2 weeks ago, it did not really do anything :). Even when I fully emersed the boxes on the locations, players would go “in and out”. That’s what made me wonder about those priorities in the first place. I will also try the suggestion of 100 / 1000. But perhaps that has something to do with the minimap limitations Flak mentioned. Once I tested more, I’ll let you know. Should be somewhere next week. 
And again thank you for your help and insights!