There are two units (Scutarii Swordsmen and Galatianised Swordsmen) that have a few unarmored models, and a majority of armored ones. Thus their armor of 5 seems consistent, but some of those armored models have chainmail. EBII seems to value chainmail more than linothorax (the full linothorax Thracian Colonists have an armor of 6 while the full chainmail Marian Cohort have an armor of 9), so those two units could have their armor buffed from 5 to 6. For the Galatianised Swordsmen, their mass could also be buffed to 1.1 just like other 6-armor units.