Thrawn's Revenge is a large-scale mod for Empire at War: Forces of Corruption. It includes the events of the Galactic Civil War after Palpatine's death at Endor, up until the signing of the Pellaeon-Gavrisom treaty. If you own the Steam version of EaW, you will have to complete extra steps to run the mod after installation. Please see the manual for these steps.
The last major CIS and CSA ship to be done, the Bulwark-class was introduced as one of the heaviest ships in the CIS roster, as well as being the ugliest. They remained in service for decades, well into the Vong War where they served to evacuate civilians from planets under attack on at least one occasion.
The CIS version will be used in Fall of the Republic: Thrawn's Revenge III, and the CSA's plain one will be the version used in Thrawn's Revenge: Imperial Civil War