Question: Jane's WWII Fighters is a game that includes the third most successful fighter ace in history, who attained what rank?
Context: Jane's World War II Fighters is a World War II era European Theater of Operations Combat flight simulation video game set during the U.S. American termed "Battle of the Bulge" in 1944 and 1945.  The game featured famous fighter aircraft from World War II.  It also featured a virtual museum, where aircraft profiles, interviews with fighter pilots such as George Unwin, Günther Rall, and others could be viewed. This is a list of fighter aces in World War II from Germany.  A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  German day and night fighter pilots claimed roughly 70,000 aerial victories during World War II, 25,000 over British or American and 45,000 over Russian flown aircraft.  103 German fighter pilots shot down more than 100 enemy aircraft for a total of roughly 15,400 aerial victories.  Roughly a further 360 pilots claimed between 40 and 100 aerial victories for round about 21,000 victories.  Another 500 fighter pilots claimed between 20 and 40 victories for a total of 15,000 victories.  It is relatively certain that 2,500 German fighter pilots attained ace status, having achieved at least 5 aerial victories.  These achievements were honored with 453 German day and "Zerstörer" (destroyer) pilots having received the Knight's Cross of the Iron Cross.  85 night fighter pilots, including 14 crew members, were awarded the Knight's Cross of the Iron Cross. Wings of Power II WWII Fighters is a video game of the flight simulation genre released in 2006 as an add on to enhance Microsoft Flight Simulator 2004 and Flight Simulator X. Wings of Power II adds vintage historical military aircraft to Microsoft's flight simulator series.This simulation add on package is similar to Shockwave Productions earlier in functionality except that the cockpit graphics and the view controls have been greatly improved. Erich Alfred Hartmann (19 April 1922 – 20 September 1993), nicknamed "Bubi" ("The Kid") by his German comrades and "The Black Devil" by his Soviet adversaries, was a German fighter pilot during World War II and the most successful fighter ace in the history of aerial warfare.  He flew 1,404 combat missions and participated in aerial combat on 825 separate occasions.  He claimed, and was credited with, shooting down 352 Allied aircraft—345 Soviet and 7 American—while serving with the "Luftwaffe".  During the course of his career, Hartmann was forced to crash-land his fighter 14 times due to damage received from parts of enemy aircraft he had just shot down or mechanical failure.  Hartmann was never shot down or forced to land due to enemy fire. Stanisław Skalski {'1': ", '2': ", '3': ", '4': "} (27 November 1915 – 12 November 2004) was a Polish fighter ace of the Polish Air Force in World War II, later rising to the rank of Brigadier General.  Skalski was the top Polish fighter ace of the war and the first Allied fighter ace of the war, credited, according to official lists, with 18 victories and two probable.  Some sources, including Skalski himself, give a number of 22 victories. Edward Vernon Rickenbacker (October 8, 1890 – July 23, 1973) was an American fighter ace in World War I and Medal of Honor recipient.  With 26 aerial victories, he was America's most successful fighter ace in the war.  He was also considered to have won the most awards for valor by an American during the war according to the April 2017 VFW magazine in their special World War I edition. Erich Rudorffer (1 November 1917 – 8 April 2016) was a German "Luftwaffe" fighter ace who was one of a handful who served with the "Luftwaffe" through the whole of World War II.  He was the 7th most successful fighter pilot in the history of air warfare, with 222 victories claimed.  Rudorffer fought in all the major German theaters of war, including the European and Mediterranean Theater of Operations and the Eastern Front.  During the war he flew more than 1000 combat missions, engaging in aerial combat over 300 times.  Rudorffer was shot down by flak and enemy fighters 16 times and had to take to his parachute nine times.  He distinguished himself by shooting down 13 enemy planes in 17 minutes.  His 222 aerial victories included 58 heavily armoured Il-2 Sturmovik ground attack aircraft. A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  German day and night fighter pilots claimed roughly 70,000 aerial victories during World War II, 25,000 over British or American and 45,000 over Soviet flown aircraft.  103 German fighter pilots shot down more than 100 enemy aircraft for a total of roughly 15,400 aerial victories.  Roughly a further 360 pilots claimed between 40 and 100 aerial victories for round about 21,000 victories.  Another 500 fighter pilots claimed between 20 and 40 victories for a total of 15,000 victories.  According to Obermeier, it is relatively certain, that 2,500 German fighter pilots attained ace status, having achieved at least 5 aerial victories.  453 German day and "Zerstörer" (destroyer) pilots received the Knight's Cross of the Iron Cross.  85 night fighter pilots, including 14 crew members, were awarded the Knight's Cross of the Iron Cross.  The list is sorted by the number of aerial victories claimed at night. Kurt Welter (25 February 1916 – 7 March 1949) was a German "Luftwaffe" fighter ace and the most successful "Jet Expert" of World War II.  A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat.  He claimed a total of 63 aerial victories—that is, 63 aerial combat encounters resulting in the destruction of the enemy aircraft—achieved in 93 combat missions.  He recorded 56 victories at night, including 33 Mosquitos, and scored more aerial victories from a jet fighter aircraft than anyone else in World War II and possibly in aviation history.  However this score is a matter of controversy; research of Royal Air Force losses suggests Welter overclaimed Mosquito victories considerably. Günther Rall (10 March 1918 – 4 October 2009) was a German lieutenant-general, the third most successful fighter ace in history and later head of the West German Luftwaffe during the Cold War.
Answer: lieutenant-general