The Jomsvikings were a special "breed" of Vikings, even more secluded than berserkers, but unlike berserkers they were not common with most Viking armies, but rather lived and trained in present day Poland (at Wollin) in a special settlement where no women were allowed, as they did nothing but train in swordfighting all the time. Their existance can't be verified though, since the only sour1ce is the Saga of the Jomsvikings. They were essentially mercenaries hired by kings to fight for them.



I hope I am of some help, even though I know that single units are really not a priority right now.



Some info on the equipment used by them:

As the Jomsviking were supposedly the greatest of all warriors and employed by kings and princes, they could probably afford the best armour. In the 10th century this would have been a mail corselet (called brynja or hringserkr, meaning ‘ring shirt’.) At this period in history the mail shirt would probably have been short-sleeved and waist length or reaching to just above the knees. The Jomsvikings would probably have worn this kind of mail shirt rather than the much longer versions as shown in the Bayeux Tapestry. Helmets would have been the typical versions of the day found in Scandinavia, varying from the usual conical helmets with nasal bar and the ones with eye guards. Some individuals might have spared the expense (or stolen from the battlefield) of having decorated eyebrow ridges inlaid with copper and silver. Jomsvikings would probably have used a combination of swords and axes (perhaps the larger broad-axes). Swords were revered weapons and most of the best ones came from Frankish lands. Javelins might also have been used as being able to throw strongly and accurately was seen as a good mark of a warrior.