The Ranger, a Centax-class heavy frigate, served the Republic Navy throughout the Clone Wars. During the Battle of Praesitlyn, it functioned as the command ship for Jedi General Nejaa Halcyon. Captain Quegh was in command. Other personnel aboard included Ensign Dejock, Corporal Ram Raders, and Private Slane Vick. Besides its array of laser cannons, the Ranger carried a novel weapon system: a dual MG1-A proton torpedo launcher.
At the Praesitlyn engagement's outset, the Ranger launched a barrage of MG1-A torpedoes without guidance, eliminating a Separatist warship. Mid-battle, battle droids from a skirmisher ship latched onto the Ranger and initiated a boarding action. Although over a hundred crew members perished, including medical personnel and many engineers, Halcyon successfully repelled the droid attackers, preserving the vessel and its surviving crew. Ultimately, the Ranger sustained such extensive damage that it was deemed unfit for continued combat and was subsequently destroyed.