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
That would being like giving a chipmunk voice to a lion.
Imagine if imperials should have a italian accent, all walking around sounding like Super Mario clones.
And the nords with Norwegian accent and so on, would sound completly [censored].
Still, the nord and imperial accents would at least make more sense due to their apperance. A orc has nothing in common at all with a japanese in apperance, orcs are big and strong, brutes. If they had to have a accent it would be more fitting to have it voiced by deep voiced scandinavian.