In the Gondamon skirmish the flag encounter sometimes happen (rarely, had it happen twice to me yesterday in maybe 6 or 7 times there). First time I just clicked the encounter fluff text away, and I didn't get what the phukk I am supposed to do. Second time the fluff didn't appear, and thus I have even less of an idea now.
Trying to click the empty flag pole gives a "Missing key" error message, so I suppose something has to be picked up from somewhere. Is the flag somewhere outside Gondamon (like the craban encounter on Weathertop, the craban boss actually never enters the ring, took a while before I figured out I actually had to run into the shadows and body pull the craban boss to the ring).
Also tried to solo the barrows skirmish. Set difficulty to 40 (as it can only be as a small fellowship skirmish, no solo option), and I lasted abuot 4 minutes before croaking. The first "tick" happens at 10 minutes, so I guess it is not soloable at 42 yet