Elite Hoplites - Much stronger, attack and defence. Stronger than Spartan.
Has a Roman_centurion and roman_praetorian_cohort_i, plus Spartan hoplite.

East Elephant - Stronger, the driver and missile are now carthagian. More units in by 2 - men 1 - elephant.

Merc Hoplites - Much stronger, officers are roman and the idea is the'yre owned by Scipii. Not to mention much stronger.

Thanks for asking. Oh, yea and Merc hoplites - almost best unit on RTW.