If this is the battle at the first town near the Entwade (at the end of the quest line) I was able to finish it on Saturday night. I was using a Hunter in full Hytbold gear, level 75 2nd age main hand LI, level 85 2nd age bow, 8500ish morale.
I think the first battle is the hardest where you have like 3ish waves of orcs. The trick to that one is to kill the Uruk first as he casts a green aura that protects the other orcs. That one was close but doable.
I think from there I had to protect the gate/fence. For that one you can actually move out just a way towards the Entwade and your war-steed controls can become active so you can mount up if you need to for extra durability. Remember to only focus on the 4 orcs attacking the walls. Once they are dead the quest progresses.
I think the final fight has a high morale Uruk (78kish morale?) and for that you can mount up on your war-steed as well if you go a little bit down the road to activate the attack controls.
Granted, you shouldn't have to do all this but I am just giving suggestions for those who are undergeared and just want to get past this.
Edit: I had no issues getting any NPC to activate. It all just flowed evenly.
Chromite/Grumbletocks/Grumbletunes/Schrade on Landroval, Chromite on Arkenstone, Appendage on Brandywine