: I guess I should take the blame for that one.
Actually that's my fault. I modified your map a little bit. Seemed too likely that people would wander in to the computer core the first time through, and probably smash the wires in there, completely missing the "failure" branch. So I modified the door door into the core to only open once you've completed the primary objective, after which most players won't go back again to find the computer core - they'll just go to the exit terminal. But I forgot to make the door stops-at-each-level in addition to locked and opens-only-once, so... damn. Fixed it already in Mk V, though.