Úlfhéðnar

Overall strategy
Úlfhéðnar are a special type of sword infantry available for service in Norse and Saxon armies, and are one of two Sanctuary-based units available for recruitment. Although they appear to be similar to Chinese Suicide Soldiers in that they have almost no armour, that is where the similarities end. Aside from cloaking when not moving, Úlfhéðnar are in effect a highly specialised class of light infantry, tasked mainly with forming a fast assault corps capable of storming cities and weathering out archer fire, but have two weaknesses — the first is that they lack armour, so unlike conventional Vikingr or Berserkir, they are more susceptible to melee attacks, especially by cavalry. The second is their tech requirements — you need to build a Temple, then research the final tier of Attrition upgrades in order to unlock them, thus making them mostly a mid- to late-game unit. Thus, like their namesake — "wolf-head men" — Úlfhéðnar are best used primarily for raiding, destroying buildings and defending against archers, but nothing else. Úlfhéðnar naturally come into their own in battle against factions that rely heavily on fortifications - such as most European factions, particularly the Franks and the Poles - but do not fare well against factions with good cavalry such as the Turks or Persians.

Unit summary

 * The Best Defence — Úlfhéðnar have lower armour compared to Vikingr, but compensate for it with stronger offensive power.
 * Hunter of Men — Úlfhéðnar are capable of cloaking when not moving, making them useful for ambushing attacking enemy archers.
 * Fire Eater — Because they can weather out archer fire and damage buildings, Úlfhéðnar are best used for raiding and assaulting towns.
 * Naked — Lack of good armour renders Úlfhéðnar highly susceptible to melee cavalry.