I've noticed that all barbarian units have a missile attack parameter higher than legionaires (5 or 6 to 4). As we know Roman pila had the capacity to pierce and bend in most shields and light armor unlike the lighter javelins used by barbarian warriors except the ones like the soliferum used by Iberian Caetrati (for them an high attack value is justified, also considering their skill in weapon's use). Moreover a compact volley of heavy pila could increase the chance of hitting an unprotected part of an enemy and had a greater effect on morale than the disordered launch of missiles usually executed by barbarians. Missiles like the German frameae had actually a longer range than pila as is correctly represented in Europa Barbarorum. So the missile attack value for non-elite barbarian and eastern units could be reduced to 4 and increased to 5 for Marian legionaires, who had better pila and a superior training. Marian and Polybian legionaires could also receive a "missiles effective against armor" bonus (Camillan legionaires didn't actually use the pila). As for the melee combat parameters, their value could be 10 for Camillan Hastati and Principes, 12 for Polybian Hastati and Principes, considering the adoption of the gladium hispaniensis and the experience of the Punic wars, and 15 for Marian Legionaires as Mario had to substantially increase the close combat training of his men after the initial defeats of the Republican armies against the Cimbri and Teutoni. Defense abilitities could be adjusted accordingly. Antesignani could have shield and armor parameters 2 points lower than standard legionaires to represent their lighter equipment. Also it would be a nice thing to add a "Cohors Augustea" equipped with the lorica segmentata.