Esbenus once served the Imperial Guards for 12 years.
Then he got injured in the wasteland and was left for dead. Raiders found him and took him in for need of good fighting men. He chose them for the benefits.
His first raider group fell for an ambush and he escaped. He led his second group to a cave and only a handful of them got out alive. After a few groups, he decided to leave the wastelands, and move south in search of greener pastures.