Complex sentence: The ships had a standard crew of 43 officers and 1010 men, and while "Moltke" served as the I Scouting Squadron flagship, she was manned by an additional 13 officers and 62 men.
Split into simpler sentences: The ships had a standard crew of 43 officers and 1010 men. While "Moltke" served as the I Scouting Squadron flagship, she was manned by an additional 13 officers and 62 men.