There was one event James Headnail's past prior joining UED. Jarl Sault became an exile among Syntax Huscarls due to James turning against him as Sault was about to not conquer enemy but to commit a mass murder. In result Sault wants a bloody revenge in a battle. After losing arm during the fight in past, Sault met Abathur. Abathur promised slight help with getting long desired revenge in exchange for indirect help for Abathur to betray his own Zerg Swarm in order to take complete control, eliminating anyone else capable to rule purebreed Swarm Zergs by himself.