First grand scale, he was commanding six numbers. Then he was western organizer of Maratha army in 18th century and worked for Scindias of Gwalior. It seems that he also won many battles with middle to big numbers involved.
It's basically impossible to tell for times before rome since there is not much writing. Anyway I chip in for skipio africanus and alexander the great because why not.
i was surprised such an extensive/through list did not include these names. esp. alexander the great
kind of like listing greatest home run hitters and forgetting babe ruth