Uirodusios are disorderly and poorly protected naked Celtic spearmen who frighten enemies.
The Uirodusios (Oo-row-doo-see-os; 'Man-Demons') fight in the ancient Celtic style, stripped nude but for his torc, anklets, and bangles, and sometimes a cloak. Though poorly defended, and not nearly as skilled as the Gaesatae mercenaries of Gaul, nor on drugs, they are still formidable and present a frightening visage that unnerves enemies. These are not so much an elite as they are often only somewhat experienced warriors who wish to increase their fame by daring acts of bravery.
Historically, some Celtic warriors fought stripped nude. This had a few effects; it was unnerving to enemies, inspiring to friends, and also helped increase one's fame; an important matter in Celtic warrior society. The skill of such men would vary depending, logically, on how long they'd been fighting in such a way, but it would likely offer superior mobility compared to alternative methods of combat, allowing them to manuever more swiftly in a melee. Such warriors would stand out in the front of a line to encourage other soldiers and to be the first to engage the enemy.
Uirodusios are rather unusual spearmen. They are not very useful in an infantry line, but have a vicious charge as well as other unusual attributes. It is perhaps best to think of them not as spearmen, but as a support unit. Their "command" ability - inspiring friendly troops - as well as their javelin supply make them excellent at operating from behind the main line. They are also one of the few units that frighten enemy infantry. In essence, they are chariots that are capable of fighting on walls.
These troops provide much needed moral support to other Celtic troops, while being blessed with excellent morale themselves. A very affordable and versatile unit, they are the most cost-efficient "fear" troops and a good addition to any army of any faction that operates in the region. However, they are very vulnerable to missiles of all kinds.
Uirodusios have an excellent AoR, most of which they share with Teceitos (Celtic Axemen). These two units make for a good offensive combination.