Lunar Reconnaissance Rocket Fighter

During the Cold War era of the First Space Age several Lunar Reconnaissance Rockets were converted into a Orbital Fighter.  10 interceptor missiles and a 20MM Cannon were added while the nuclear powerplant in the  nose cone was replaced by conventianl batteries and fuel cells. Crew size was reduced from 6 to 3. It was capable of over 5 KM/S of Delta V with 10 days of life support.