Have you recommended a novel with a fighter pilot as the main character?

He only remembered that the main character was a maintenance soldier of the Empire in the beginning, and later became a fighter pilot. After that, he accidentally killed a major and was rescued by the Freedom Alliance on the way back. He then joined the Freedom Alliance. In a mission to protect the leader of the Alliance, a so-called wife, he used the explosion of a planet to destroy an enemy fleet. He had forgotten about the rest. It's not Fake Hero