Many mobs don't have sounds except for reusing player sounds when hurt, which sounds a bit strange. This includes Yetis, Death Tomes, Penguins, Goblin Knights, Mosquitos, Cave Trolls, and the passive/ambient animals such as squirrels. Forest bunnies could simply reuse vanilla rabbit sounds.

This has been completed aside from a few bosses which would be better suited to be combined with their respective reworks. All animals now have custom sounds as well as practically all mobs that needed them.

Renaming this so we can include the other issue among any others related to custom sounds for TF mobs

Also worth noting the subtitles for vanilla sounds are hardcoded to their respective entity names.