Star Wars: Interregnum is an upcoming mod for Sins of a Solar Empire: Rebellion that builds off of the highly successful Enhanced 4X Mod. Fleeing the unknown terror that is chasing the Vasari, the factions of Sins of a Solar Empire stumble on a temporary wormhole that takes them to a galaxy far, far away. The sudden arrival of armadas with trillions of refugees and thousands of warships between the events of Episodes 5 & 6 forever alters the Star Wars universe and plunges the galaxy into an unprecedented period of chaos and violence. Begun, a new conflict has.
Joining Teren Rogriss and Admiral Piett as Imperial hero units, Grand Admiral Thrawn probably needs no introduction. A brilliant Chiss commander exiled for his unorthodox tactics, he eventually found a welcome home in the Galactic Empire, despite its humanocentrism. After being promoted to the rank of Grand Admiral only months before Endor, Thrawn was just resuming his campaign to subjugate the Unknown Regions when the Interregnum started.
When the Human Trader State invaded the Chiss Ascendancy soon afterwards, Darth Vader sent Thrawn to answer the Chiss request for aid in return for them becoming an Imperial Vassal. Rather than defeat the HTS, Thrawn saw the possibility of a Empire-HTS alliance based on their shared humanocentrism. After negotiating through human intermediaries, the HTS allied themselves to the Empire and played a critical role in the Battle of Thyferra, which stabilized the Empire's borders as the Triple Alliance was also forced to fight a multifront war.
Since then, Thrawn has remained focused on building his forces up in the unknown regions, using newly colonized planets and tribute from the Ascendancy. He has refused to take sides between the various Imperial Warlords, and instead has pushed for all Imperial factions to reunite so they can destroy their new enemies. As such, he is the only Imperial hero recruitable by both the Galactic Empire and the Imperial Warlords.
As a unit, Thrawn commands an Imperial-II star destroyer. He has quite a diverse range of abilities, allowing him to easily move around the battlefield as well as capture, damage, debuff and disable enemy units. He also has an always active leadership bonus that increases his unit's accuracy.