Complex sentence: In contrast, NavCads, who had some college, but typically lacked a bachelor's degree, attended their entire flight school program as non-commissioned candidates and did not receive their commissions as Ensigns until they completed flight training and received their wings as Naval Aviators.
Split into simpler sentences: In contrast, NavCads, who had some college, but typically lacked a bachelor's degree, attended their entire flight school program as non-commissioned candidates. They did not receive their commissions as Ensigns until they completed flight training and received their wings as Naval Aviators.