If don't mind me asking, what exactly does this have to do with the building?
Originally Posted by: Annihilationzh
It took me a while to understand what you were asking. I'm still not entirely sure, but here goes...
Overlords can spawn a gattling cannon as a passenger inside themselves. If you give this code to a combat bike, you can spawn infantry on the combat bike, which will cause the driver to get off the bike and be replaced. Now you can make your infantry fake (invisible, unattackable, etc) and make the upgrade free and instant and name the upgrade "Evacuate."
Voila. The bike now looks like it's empty when you evacuate it, but it remains standing because it still has a rider.
Originally Posted by: Gameanater