That is correct, but somehow I believe that they could have launched the "new" CBC before and just drive the bus to the aircrafts instead of going to the terminal.
Starting the CBC and the Terminal 3 all together could add up more problems, maybe it would be easier if they do one step at the time, just my opinion
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If anyone hasn't done the tour I recomend it, the place it's massive and there will be many crew lost or "missing in action".