Does this destroy all ufos currently in the geoscape simultaneously?
The reason that I asked is that it doesn't... and I've lucked into a savegame configuration that seems to always generate a zombie if you use debug_destroyufos shortly after the mission starts to prove it
Also, not only does this "Plan 9" bug seem to account for savegames that won't load, it also seems related to savegames that will load but crash to the desktop when you start the clock.
I'm composing the report and will post it and the savegames in the other plan 9 thread...
... also will describe other strange effects...
Brilliant alien plan #9 is brilliant...