Also I have already made a flight simulator with absolute height gestion
and If you want to see my triguering see the code of tavern and of human war.
I can remove the leaks I will show you what is a leak.
a leak is an information who is not removed and take memory so if I create a point with center of loc this is a leak beacause the point does not disapear automatickly so we need to use a fonction for removing the point.units groups,players groups,effects,rects,regions,destructible groups and strings leaks.strings leaks and destructible leaks are not removable. but If you use two times a string this will leak only one time.for removing a leak you need to use a custom script exept for effects beacause there is an action for removing effects in grafical user interface so you see I know leaks