I have started working on my own custom campaign for wc3, but i have noticed that i will make a unit in the campaign editor but as soon as i place it in the map it will disappear. i solved this problem temporarily by copying the unit into the object editor, but i have had more and more issues because of this process. are there any ideas or suggestions on how to keep the units and abilities in the campaign editor but use them in the map? any suggestion and help would be appreciated. thank you.