In my opinion, since we have barbarian, a potential viking should be a swordsman hidden class, and you’d need to be barbarian c3 to be able to be one, like chaplain and priest 3.
Because if it’s just like that, they look too much the same and feel like there is 2 times the same class in a tree, the only difference being the weapons.
At this point we have 2 cleric hidden classes, why not 2 swordsman…