I'm going to disagree purely on the basis that I played a strike last week that I hasn't played before. My "teammates" clearly knew which encounters to fly past and the route underground. Meanwhile I'm wandering around trying to find the correct path. Some of those tunnels turn you around and there isn't always an obvious route. I turned up late to a couple of the battles only to see them run off again. So I wasn't hanging back I just hadn't done the mission before.