I have two issues here. First, a shield boss is intended to cup your hand; if a shield has a boss, then you can be pretty sure that there are no arm straps. Shields with bosses, including the Roman and Nordic shields, are held in the hand by a single grip going across the inside of the boss. The boss is, of course, hollow, and that's where your fingers go. I am very, very impressed by the level of research that went into this game (what other game even has a glaive?), and this is really the only major error that I can see in the arms and armour.
The other issue is the size of the Nordic shield. Historically, Viking shields were full body shields roughly a yard in diameter. I own an accurate replica of one of the shields found in the Gokstad burial ship, and if I crouch I am completely and totally covered. The Vikings, like the Romans, were known for their shield wall. The small shield we have in game isn't very Nordic. Speaking of which, might we get the classic Viking paint job for the shield, with the four sections of white and red opposing?
The other issue is the size of the Nordic shield. Historically, Viking shields were full body shields roughly a yard in diameter. I own an accurate replica of one of the shields found in the Gokstad burial ship, and if I crouch I am completely and totally covered. The Vikings, like the Romans, were known for their shield wall. The small shield we have in game isn't very Nordic. Speaking of which, might we get the classic Viking paint job for the shield, with the four sections of white and red opposing?