At the same time when you set the first obj to done, put this in the same trigger/script:
objboolean1 = true
and next obj's trigger/script:
objboolean2 = true
and, suprisingly, in the 3rds trigger/script:
objboolean3 = true
And in your end triggers cond field:
objboolean1 and objboolean2 and objboolean3
:beat: *Gets Shot* :beat: