You are a mad dok. Your the like the pain boy, except you actually heal your boys by experimentation.

Once you worked as an honorable doctor to your fellow Ork clans. But then after your boss got blown up and vaporize you experimented on him, and brought him back to life, but he became a bloodthirsty monster that went on a rampage with all of his boys.

Kicked out and unemployed…

You found a new job working as a 10th mercenary to the red team of TF2