When starting the mission, a prompt states to make an f10 radio remark before startup, but no F10 option is present. Radioing the ground and tower frequency doesn't prompt a response from the AI ATC.
Moving along on your own breaks the mission, producing a terse message that you should have asked for permission, and again that you should have waited for permission to taxi.
Then you're asked to hold short and wait for everyone else to move, but nothing happens. At least this time an F10 prompt on the radio appears. Waiting for a few minutes does nothing and yet again a terse remark is shown if you decide to take the runway.
What am I doing wrong or is something broken in the mission? Is this a bug with the F10 radio messages?