Maybe.
I've just played 2 other DCG patrols as part of my campaign and they have all said 'Mission completed' just as I'm taxiing to take off. As far as I can see this must be a side affect of DCG as my objectives are at least 30-40 flight time away.
It can't actually mean anything as I died in the last patrol and the mission was a failure. So I suppose it doesn't matter.
