reiksmarshal is precisely correct. By naked I meant the ones with tunics and a seax. I dont think ELITE vikings should have them. Regular Vikingr though Im perfectly fine with having tunics. Either way, its besides the point, Elite Vikings having better equipment was only a side note to my main point: Viking troop tree. All the bandit types have troop trees, farmers have troop trees, peasant woman have troop trees, and with every troop tree comes progressively better equipment. In addition you already have multiple types of vikings, so it should be easy to link together into a troop tree, with regular Vikingr underneath Elite Vinkingr. I understand your point that Elite Vikingr are elite units that should be hard to obtain, and I believe my suggestion actually makes them harder to obtain. How many reavers or highwaymen do you see in the average bandit group? Not many, precisely due to having a progressive troop tree. The same is not true for viking groups, which can have many many elite vikings, thus making them in truth easier to obtain. Besides, there are mercenary units which do the same job much better (Svear Warriors for example).
In addition, vikings arent necessarily bandits, there a collection of norsemen who are going raiding, a very legal and legitimate profession among the Norse nations. A Norse Huskarl could be bodyguard to Jarl, then be a viking on a raid the coming spring, as could a Hersir or Jarl. In this sense I dont see how comparing Vikings to Nobles is much different, as they could be one in the same. Given the norse tendancy to go on raids (thus being remembered as Vikings even though not all Norse actually were vikings), being able to hire "Pagan Raiders" or something that evolves into vikings and elite vikings isn't lore breaking or un-historic. If anything, it should fit right in to the basic ideas the game represents.
I still fail to see why making a viking troop tree defies game balance. Even if it does, like I mentioned previously, you could add a negative reputation requirement with the christian faith to hire them. Personally I think this more than balances it as every christian kingdom will end up attacking you, which makes sense if you want to be a viking.
My Suggestion is as follows -
Make a viking troop tree
Make the lowest tier of vikings able to be recruited in pagan cities by a ship captain by the harbour
Be able to join the ship captain on a raid where your character is but a humble soldier among other viking raiders.
Think of it this way:
You start a new character and want to be a Norse Viking, not Jarl, not a bandit, but a raider of the seas. How do I start this off? Well, I need troops and a ship. How do I get troops and ship? Pull some favours for the local lords, Go to the villages and recruit. Or if I want to be a bandit, find a group of ruffians, beat them, and recruit them as prisoners. But ruffians and their respective troop tree are not vikings. I still need to progress in the game until I am able to obtain a ship, defeat a crew of vikings and recruit the prisoners, or earn enough money from raiding to bribe them to your side. This is dissapointing from a story element. If I obtain some ruffians, they are my first soldiers, I have investment in watching them grow and trying to make them bandit cheifs. We fight together and grow together from the beginning. This cannot be done with vikings. Theres less sentimental value attached to them because you dont really invest in getting them, making them a lot more expendable. In addition, once you get a viking or elite viking, thats it, they cant improve. This basically makes them cannon-fodder. Elite, expensive cannon fodder. With troops that have trees you have more investment to keep them alive because you want to see them grow, you want them to improve. Then when you get that nice shiney huskarl, your proud of the work you put into attaining it, so its still not expendable. Heck a sailor could even be the 1st tier unit to the viking troop tree. Sailor ->vikingr -> (Nation) Elite Vikingr / Ship captain. Then you dont have to add anything.
Besides, raiding and being a viking is one of the primary points of the game. I would love to go kill some monastaries with my new forged crew, a crew which I can raise. I think it would also be amazing to be able to go on raids with a ship captain, following him around and attacking merchant vessles and raiding villages and/or monastaries. Doing this would lower your rep with the christian faith. This could provide a way early on to lower your rep with christians enough to make your own crew of vikings.
You could even make a little side-quest where by following a group of vikings you can become a ship captain yourself, and be awarded a small crew and small ship (upon completion ending the quest permanently so it cant be abused for ship/troop spam).
Anyway, what do you think of the suggestion itself?