Neil Armstrong didn't "cut in front of" anyone for either of his space missions, Apollo 11 or his lesser-known first space flight, Gemini VIII.
Apollo crews were assigned by the head of the astronaut office, Deke Slayton - himself an astronaut who had been grounded by a heart condition. Slayton set up a standard rotation whereby a crew that had been backup for one Apollo mission became the prime flight crew three missions later.
Armstrong had been backup commander for the Apollo 8 mission, so by the normal crew rotation he became the prime commander of the Apollo 11 mission. Buzz Aldrin had been backup Command Module Pilot for Apollo 8, so he was also in the regular rotation for Apollo 11. Michael Collins, Command Module Pilot on Apollo 11, had originally been scheduled to fly on Apollo 8 but was replaced by Jim Lovell due to surgery. So he was given the opportunity to fly on Apollo 11.
Neil Armstrong has never flown on a space shuttle mission.
Neil Armstrong was 38 when he went into space on Apollo 11 mission
Apollo 11
NASA sent Neil Armstrong to the moon. But President Kennedy paid for the space mission.
Neil Armstrong never served on a space shuttle mission. He was part of the Apollo Program
Apollo 11 was Neil Armstrong's mission to the moon.
Neil Armstrong first went into space aboard Gemini 8 in 1966, where he performed the first manned docking of two spacecraft. And also in July 20, 1969 he was the mission commander for the Apollo moon landing.
Armstrong's first space mission was the Gemini 8. The mission was launched in March of 1966. Armstrong was born in August of 1930. Thus, he was 35.
On July 20th, 1969, the Apollo 11 space mission sent Neil Armstrong and Edwin "Buzz" Aldrin onto the moon.
He landed on the moon July 20, 1969, but was part of the Gemini space program before this. On March 16, 1966, he first went into space as the pilot on the Gemini 8 mission.
David R Scott was in the Gemini VIII capsule along side Neil Armstrong. Scott, like Armstrong went on to command an Apollo mission, and walk on the Moon during the Apollo 15 mission.
Neil Armstrong has not flown on the Space Shuttle.