Fun facts about Khaz and his friends:

1: Helhiem doesn't actually have a real herd animal; Some of the tribes practice farming and grow edible crops but the main stable of the tribes is a boar like creature that is covered in razor sharp spikes and fur. These things are huge.

2: All imperial loyal tribes of beastmen on Helhiem are made up completely of goat like abhumans; Any child born with the mutation of a different animal (Or born to mutated to be considered acceptable) will be quickly and quietly given the blessings of the God Emperor and killed as quickly and painlessly as possible. Both are seen as signs of the Dark Gods trying to corrupt and steal a pious soul from the Emperor (As proven via the make up of the Chaos tribes on the planet) and thus the tribes kill the unfortunate child after blessing them in an attempt to send their soul to the God Emperor while it is still hopefully pure before the Dark Gods can properly sink their foul taint into them.

3: Helhiem doesn't have alcohol. Between the plants not really being up to the task and their own primitive/tribal nature, none of the tribes (Either loyalist or Chaos) have figured out how to brew alcohol. In fact, when they were provided with alcohol rations the Warband came to the collective conclusion that it was just a foul smelling liquid to start fires with.