Roman Legions seem too weak

[Dayve]

You must be joking... I conquered half of Iberia in the Camillian era using a few native Roman troops as a core surrounded by hordes of allied Iberian light spearmen and light swordsmen and generals who barely scratched 1 command star. I conquered the other half in the Polybian era with much the same legions and never even suffered 1 defeat.

You must be playing on hard or medium battle difficulty. However i will agree that Roman troops take way too many casualties against javelins, even non-AP ones hurt hard. You get 1 unit (or nightmare situation, more than 1 unit) throwing javelins at your Roman heavy infantry and large full bodied shields be damned you will take 50% casualties in that unit, especially the Camillian and Polybian units, 1 volley of javelins and your hastati are decorating the ground in the hundreds with their blood.