So... Why did you post this???
anyways, heres how DS firing system works if you don't care who shot it
If All players brings 1 DS anywhere
Center location BoomBoom on 1 DS for all players at anywhere
Create 20 observers at BoomBoom apply properties
kill 20 observers at boom boom
Kill all units at boom boom
remove one DS at boom boom for all players
P.S. All players and neutrual(P12) will both work for the ownership of the DS