The Complete Monstrous Fighter's Compendium

From the back of the book:

The Complete Monstrous Fighter's Compendium is a d20 system sourcebook that finally provides all of the rules necessary to create and play a monstrous Player Character. But it is far more! Though set in the Green Races campaign world of Elara, Players and GMs alike can use this book in any fantasy campaign where creatures like goblins, orcs and trolls wander the lands. Included also are rules for running these types of creatures as PCs and NPCs, as well as both base classes and prestige classes unique to these martially minded races.