Looking for Sci-Fi book about humans used as pack hunters by aliens

[Allusion5275]

I read a book when I was a kid about a post apocalyptic world that had been invaded by aliens. The aliens used the Earth as a gigantic hunting preserve and utilized specially bred humans as their pack hunters. Possibly has the word Hunter in the title. Anyone have any ideas or good references for searching for books? (search pages etc)


Thanks,

Allusion