From publisher blurb:
Assemble the Hobgoblin Hordes
Hobgoblins are fiercely trained warriors with rigid military discipline. Their armies are comprised of the best of the best…except when they’re all the same CR 1/2 fighter from the Pathfinder Roleplaying Game Bestiary. Of course, adding class levels to a monster is hard work—just as much so as building an entire character from scratch. While there are certainly times where only a specially-made stat-block will do, there are also plenty of times where you just need a CR 4 hobgoblin, and don’t want to pore over a dozen different sourcebooks to put one together.
This book includes fifteen stat-blocks for hobgoblins, ranging from CR 1/2 up to CR 7, featuring a wide variety of different classes and roles. Each stat-block also includes one or more unique special abilities that enhance its combat tactics and ensure it will provide a memorable encounter.
Whether you want to provide variety to the stat-blocks in an existing adventure featuring hobgoblins, or create your own from scratch, these stat-blocks can be combined in dozens of ways to make interesting and unique encounters.