Besides the Carthaginian levies, the Bruttian recruits Hannibal took on during his years in southern Italy seem to have been poor replacements for his African, Spanish and Gallic veterans.
I dissent.
Bruttian warriors are despised in most roman texts, but that's most probably a biased opinion. Bruttians, like Samnites Before them and Veneti after, were staunch adversaries of the SPQR. They were mountain people that fought midway light and heavy infantry (sturdy armors, short swords -probably greek- and often mid-sized shields). They were surely inferior to Roman Principes, but on hills and mountains were way more deadly. They fought the Romans before and after Hannibal, and continued until the romans broken and absorbed them definitively.
If they don't shine in the Hannibal's roster is because they weren't the kind of troops he was used to deal with. Hannibal never really fought a guerrilla hill-war, the kind of conflict at with the Bruttians excelled.
I hope the Hellenistic armies will be able to reform their army towards the Machairophoroi.
Period.
It seem there are technologies. Maybe relatives of recrutement? How to recrut, which % of population etc. For exemple in greece the core army (and armored ones) were citizen. Maybe a Quality of "soldier". Rome soldier were given equipement from the state unlike others state.
This was true only from the Marian Reform on, which means around the end of II century BC. Before that roman soldiers should provide their equipment by themselves, like every city-state of the ancient world (even though they stopped being a city state a lot before...).
But it's true that
clientes -sort of vassals ante litteram (oversemplification, don't bite me) - were often armed by their
patroni (patrons), so by that time not many of them actually armed themselves buying their own equipment.