Howlitzers have the same status resistances and immunities as Gun Puppies even though they are technically Undead. For example, at depth 1, the Shivermist thaw does 14 damage to them just like Gun Puppies but other Undead at that depth take 11 damage. With Ash of Agni at Depth 2, the fire does 6 damage to Gun Puppies and Howlitzers alike. Zombies, however, take 9 damage and Kats take 5.

Also, Howlitzers are immune to sleep vials just like Constructs but unlike Undead.

I've noticed the same status resistance trend with Polyps, e.g. at Depth 3 they take 25 thaw damage instead of 28 like other jellies. They too are immune to Sleep.

This is hardly important. But if it is super easy to fix, it would be nice if the resistances were copied from their respective families.