Is there a way to decrease the amount of fatigue suffered when hunting? I find that around group level 4-5 my advy gets too fatigued to hunt, and resting takes too much time to return and hunt the group again.
I believe your best bet is to make sure you have good options for resting—resting on the floor will probably take you too long to be able to go back and hunt; resting in a private room is more likely to work out for you.
I have some plans to improve hunting in groups, but they're dependent on my finishing the message system update.