I would like you to meet one of the"Brothers Soong" Commander Data. In the Terran Empire of the Dark Mirror Universe the Soong Type Android is one of a legion of Imperial Enforcer Androids. Data and his brothers B4 and Lore were the first three Soong Androids found. They were used as templates for a whole army of Androids that serve as personal assassins for the Empire's Admiralty.
The Brothers Soong were assigned to the Imperial Flagship I.S.S.Enterprise-D under the command of Jean Luc Picard. There they forged an alliance with Picard to be his personal wreaking crew (The terms are at this time still a mystery). With their
help Picard has risen in rank and the Brothers Soong take out anything that stands in Picards' way.
*Note in the original Dark Mirror Novel by Diane Duane Data was never created. I decided that in my Dark Mirror Universe Data was created and the Empire took full advantage of the Technology.