Rather than recruit hirelings, characters have the option or purchasing gore apes to serve as cannon fodder in the dungeon.
Gore apes are smallish (80-150lbs) simians. These tough, vicious animals are bred and trained by humans as war beasts. They have long, sharp claws and a resilient armadillo-like hide. HP: 1d6+2, AC: 13, +2 to hit, DMG: 2d4.
These creatures are social beasts and respond well to forceful human personalities. Generations of meticulous breeding and intensive conditioning have made them compliant, but in times of stress their animal instincts may overpower their indoctrination:
When you try to impose your will on your gore apes in a charged situation, roll 2d6 and add your charisma modifier: On a 10+ they do what you want and you don't have to make an example out of one. On a 7-9, pick one of the above. On a 6 or less, they rebel*.