if anything native American accent
your idea is like giving nords a Hispanic accent
or an Argonian a french accent

You have not thought this through. Here's why.

If the Nords sounded scandinavian you would have two possible outcomes:

1. They speak english but in a heavy scandinavian accent. That would sound absolutely awful, it would be ridiculed by every scandinavian player I can assure you fo that, Norwegian people speaking bad english sounds beyond ridiculous, trust me.
2. They would speak Norwegian, Swedish or Danish (Altthough Norwegian would be most likely I think and also fit best, call me biased, that's my opinion.) and thus either the subtitles wouldn't match or the vast majority of players wouldn't have a damn clue what was being said.

Either option is bad. Nords are based on Scandinavian culture yes, but they are not Norwegian, not Swedish and not Danish. They are Nords.

The same applies to Orcs.

Imperials by the way are heavily based on Roman culture, would you prefer that they all speak italian?

the only accent I can imagine orcs speaking is irish and that is because of shrek

Shrek is an ogre.

Herro, your horse rooks dericious. Yesh Prease.

Seeing as the Ocs culture and weapons armours and honour is Based on the Japanese Samurai's i thinkt the orcs should be given a deep japanese accent for skyrim1

Poor Chinese imitation by Cartman and Butters from South Park?