thank you very much; this isn't what I am seeing, but it helped me recreate it somewhat. I did some tests with 80 gcs.
If I use spread move alone, the units will still bump into each other- but they do get closer than usual. If I use spread move to clump them up as much as possible, then tell them to get into formation- they will stop bumping into each other and overlap- that is what I see people do, but I can only do it in formations; is there a way to use formation move where all the units go to a single spot?
I also noticed that the units all need to be in the same 'formation' in order to not bump into eachother; I do recall that the game I played where the guy had like 200+ gcs, he never micro'd them and they did all change direction together like it was 1 group of units.
Is there a mod that does this? (allows 'Formation Stacking' where all units are told to go to a single spot (like Spread Move) but they retain their 'Formation Stacking' so they freely overlap.)