Kalran: Tales of the four nations/Volunteer center

Volunteers (for all intents and purposes, magitek Cyborgs), citizens of Ouroboros who chose to fight and defend their government, are uber-infantry, due to having their body enhanced by both panacea and cybernetics, which have the combined features of tanks and infantry. Volunteers are uncrushable by normal vehicles, and in fact some of the heavier ones can crush infantry. They are resistant to gun weapons but takes minor damage from cannon weapons, but autocannon weapons will deal more damage. They can garrison structures as well and are the only units, barring the commander epic, that can gain veterancy, up to five times, but unlike the other similar factions, it only increase their stats.

But Volunteers requires mandate to purchase and they only come as a single unit, meaning it's going to be harder to create large squads, and, being infantry, are still fragile, outside of Logistics, meaning they must rely on the more numerous penitent infantry, vehicles, and naval craft, which can't gain veterancy, to protect them.