Originally posted by Oo.Deamon.oO in the tutorials section
QUOTE
WARNING: This will only work on Windows.
Everyone keeps asking how to cloak units, and I see too many replies with the doodad setting triggers.
A good way to do it is to use a p14 scarab to freeze units. The scarab must be placed AFTER the units you want frozen, and the units you don't want frozen, but cloaked, must be placed after you place the scarab. For units to freeze and be visible, the player seeing them must have had vision with them when they were being frozen, so if they do not see it, they are invisible. Cover the map with arbiters owned by the computer player - make them invisible, and then place the units you want cloaked. Any unit, even sieged siege tanks, will be cloaked.
I played around and figured out how to freeze units with SF, and then I figured this out. I know a lot about special effects, so message me on SC @USEast if you need anything - I'll be happy to help.
LW: I know minerals are great, but please use quoteboxes/links.