Zero stop it. You arent versed well enough in hand to hand combat to make these claims. I would beat the shyt out of one of these vikings. MMA takes pure physical strength. Its not a gentle art. Now against those swords and things like that obviously, id be dashed to death but with a fair one? Please.
Also, what was huge back in those times. Most these cats were flabby n sick lookin so im sure by huge you're talking someone between 160 and 180 on Average with their brutes being in the low 200's. Its a misconception that they were all a band of large brolic individuals. Jon Jones could beat the shyt out of every viking that ever lived.
I know MMA takes physical strength but my point is that it uses skill to leverage the strength in a certain way that can't be used against people who'll just eat the hits or won't fall. It's a mistake to think that human strength and skill increases with chronological time. How many 200+ dudes today can carry an Axe and Sword around 24/7? Can Jon Jones even beat a skilled gladiator hand to hand? What makes you say that?
Come on breh ancient and medieval warriors used to run out in open fields and hit one guy after the other like in a movie until someone put a spear through them. Imagine actually running through a battlefield on a horse and swinging at one guy after another for hours ducking arrows and sh1t. Now why would we assume that modern humans can do that better?