So I ran into “Help johan with his training duties at vollym’s battle pit” in the north-east Gendarran fields.
The quest heart told me to fight monster in the group battle pit nearby, with 3 difficulty options to choose from.
However, when I got there, the pit was already filled with 5 powerfull wurms – 2 Ice and 3 Plains Wurms.
I’m guessed those got left over from previous people who failed to kill their prey.
There was no way to enter the field without choosing a difficulty level, so I had to enter to fight 5 wurms + 3 raptors.
Even after gathering around 5 people the task proved implausible, and after a few wipes we gave up.
Hope you can fix what should have been a very fun quest.