The USS Crusader has served in the Federation for over 25 years. It's record is considered one of the best in a line of ships of Starfleet history. The Crusader appears in Star Trek Crusader, and is under command of Captain Candela Greene. A Saber-class vessel, it was originally a scout ship. But after numerous conflicts, and refits, it has been reclassified as a Light Cruiser. Among it's additions include Quantum Torpedoes, and Pulse phaser canons.(Star Trek Crusader, Star Trek: Generation Fleet Forum)