Hi I am looking for a book where a soldier has a spiritual experience while fighting a battle and walks off. He learns a martial art and becomes a freedom fighter using a spetsod (?) that fires darts that paralyses the enemy soldiers. I think he owned a bar as a cover.
The book would have been from the 80s or early 90s. The main character was a soldier in a federation type arrangement. He was in a battle and had a sort of spiritual moment and dropped his rifle and just wandered off. He met someone who trained him in a martial art and then started a one man campaign against the organisation he used to be a part of. His idea was to bleed the enemy of resources so never killed, only used a paralyzing dart that left people unable to move for months and meant they had to be cared for, bleeding the enemy resources. The weapon he used was attached to his hands and hidden using a flesh...covering.