Didn't Pyrrhos' army consist only of mercenaries? So the Hypaspistai in his forces were probably just makedonian mercenaries? Or am I thinking the wrong way here?

Also I wonder: Did the Epeirote even have there own "armies" in a way the makedonians, seleucids or other successor-states had? I actually never read about it - it might be caused by the fact that its somewhat hard to find info about Epeiros except the time of Pyrrhos, who obviously only used mercenaries (thats what I heard at least).

Oh and I got another question: How did Pyrrhos strategies differ from the typical successor-tactics with phalangitai, skirmishers and flanking cavalry?