Alfred Kirchner was serving onboard the Elivagar Flagship during the miner's rebellion. He was originally a representative of the mining corporation and his job was to ensure that company quotas were met.
During the rebellion, however, he supported Fleet Admiral Nicolina Verona and became her personal advisor. This was largely due to the fact that he felt overlooked by the company and he was long overdue for a promotion.
When Captain Vance and his mercenaries took control of the fleet, Kirchner betrayed Verona and sided with Vance. He was presumable either arrested or killed while the fleet was bombarded by a strike team of Space Wardens.