TheHunter: Call of the Wild - Bloodhound Review (Gorebane)
It's kind of useful to have a dog to sniff out blood trails. Note it cannot help you track animals, only blood trails.
Unfortunately just like all other Expansive Worlds content it's low tier, low effort, and buggy:
The action wheel sticks 50% of the time so after using it you can't then access storage, claim outposts, enter stands etc until you realise it's stuck and hold B again to unstick it.
Literally every 5 minutes you have to stop what you're doing and shake hands with your dog to keep it happy.
You have to pretty much be standing over the blood trail for the dog to initially find it.
They've given the dog the same moving through the brush sound effects as deer so forget using that sound effect to warn you of nearby animals.
They've given the dog physics so it will often push you about and block shots/movement.
Unless this is 90%+ off I wouldn't bother.