An old Clone-wars era ship obtained and re-purposed for use in a Rebel Alliance reserve fleet. The Recusant-class destroyer was formidable warship boasting heavy forward weaponry and anti-fighter defenses, but lacked heavy armor and suffered from a vulnerable, skeletal superstructure. Originally, the ship was primarily filled with advanced computers. However, the Rebels customized the interior with additional crew space, storage, and fighter bays.
Probably my favorite ship design in Star Wars. This one was a fun project.