Yeah. A different tactic is now needed for A Stone Obstruction.
During setup, place a catapult on the walkway over the main gate. Upgrade it for Armor, Damage, and Speed but not Distance. Load it with a Heavy Shell and the second powder type. Crank it to maximum distance. Turn it so the shell will land in the stream.
On the spot where you enter, standing on the walkway, looking out towards the battlefield, there is a tower on your left. This is the same tower that gets attacked during Protect the Watchtower. There is a lane right next to that watchtower. Near the commander who is closest to the watchtower, place two upgraded barricades on the path from that commander to the watchtower.
When the quest starts, drop a bear trap or trip trap in the barricades described above and run to the catapult on the walkway. Looking from the walkway directly out at the battlefield, Dunlanding Stone Carriers will now be seen walking around the prominence to your left towards the stream. They come in twos and later threes. As they enter the area of effect circle of your catapult, kill them. Reload, crank, and repeat until all stone carriers are dead.
The above method will usually result in a Platinum Medal. Sometimes, an attacker will get past the barricades and attack the archer closest to the watchtower. I have not figured out a good way to prevent that but occasionally taking a peak at the watchtower and pulling any enemy you find should do the trick. Take care not to miss any stone carriers!
After the quest concludes, reload the catapult with a heavy shell, add armor rend powder, crank to maximum distance, and turn it to fire upon the walkway leading to the gate. Now the catapult is ready for killing the vile war machine.
Good luck!
I will come back later and add a (really bad) picture but right now I need to skirmish.
Last edited by SophieTheEnchantress; Mar 19 2020 at 02:14 AM.
Sophie the Enchantress - Creator, Dreamer, Explorer - Happy yet Sad - Seeker of Beauty and Wonder
I wish all of you many successful and happy adventures., brave Ladies and Lords of Middle Earth!