Heres a finished concept of a unit for the Alexandrian Empire:



Hypaspist 2nd Class. He is a member of the Homeland Guard, a division of the finest greek soldiers the empire can collect. Their sole purpose is to protect the greek homeland stretching from Illyria to Byzantium. They were permenatly stationed in Greece after the Roman invasion of 173BC in retaliation for the Alexandrian conquest of Sicily following the 2nd Greco-Roman War.