Have you guys ever played WC3 Dota? and used the hero Invoker using the "sunstrike" spell? If you have then that's exactly what I can do with scanner sweep on SC, and if you don't know what "sunstrike" does, it's basically a global spell, it's like scanner sweeping at a location and in that AOE, enemy units would take damage.
Now you are all waiting for me to reveal the secret on how to do this...
This is my theory, have 2 spare computer players for this to be able to work.
Let Computer A be the "intake computer."
Let Computer B be the "trigger computer."
Have burrowed or cloaked units spread equally onto the 'arena' or battle field, make sure the computer is allied to all players and computers, and also give the hidden units 9999 life and 0 armor to avoid them dying on mistake by other people's spells, then have cloaked wraiths spread equally on the arena/battle field as well as the "trigger computer." Make sure the wraiths do at least 9999 damage to ground/air and is invincible, also use the hero wraith to avoid natural AI to disrupt you, ofc then you also make sure to keep all wraiths cloaked and full energy at all times. Make sure Computer B is also allied to all the players in the map along with other computers that are participating except for computer A. Make sure that Computer B has no vision of Computer A, and also make sure the player that is casting scanner sweep shares vision to Computer B. Now when you spread the hidden units across the map, make sure that no matter what, only 1 set of cloaked units can be revealed at once when scanned, so to speak spread the units far enough so you don't have doubles being revealed for glitches, and ofc you don't need to permanently keep those hidden units on the arena, maybe only when the person scans, we all know you can at least detect scanner with the "current player commands..." condition. Now the complete idea is to scan the specific location of the map, when a hidden unit is revealed to Computer B, it will fire at it, killing the unit then at that location is where the spell would be cast.
Of course this idea is limited to maps, unless you don't mind laying location over location across a large 256x256, but otherwise IMO it's pretty solid, let me have your opinions ^_^
None.