Im not sure if this is bugged for everyone, but no matter how many lvl 23 marmoths I kill with a perfect red ring attack, the quest is not completing, I am completing this on the tundra expedition where the mobs needed are lvl 23 and quests stets 21+

turns out its not bugged the level requires is not 21+ but 31+ wish they would put the correct level req in the mission text