Active Surveillance image - Empire at War Expanded: Thrawn's Revenge mod for Star Wars: Empire at War: Forces of Corruption
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.
A pair of 310m frigates based on the same hull. The Surveyor (Top) provides a support ability-oriented platform for Warlord Zsinj's forces in 3.2, while the Active is primarily going to be for the Duskhan League as a more typical escort.
The design roots used were a background ship that happened to match the size, shape, and every mentioned detail in the descriptions given. Not a bad showing, coincidental or deliberate.
Model & Texture: Skye/CatGirlSkye
Are these another design based on the ubiquitous vindicator hull?
Yes, but much smaller
You are right, for some reason I thought the vindicator was 300m but it's actually 600m.