Board Thread:Rogue general discussion/@comment-27020644-20151201055147/@comment-27020644-20151201145224
I'm pretty sure that he did know about Shay prior to the Modern Day portion of Rogue, given how he seemed to revere him throughout the game even before we reached the part where Shay joined the Templar Order.
I don't think the Viking Armor belonged to Otso Berg's ancestor. The ancestor, described by Otso Berg as "a young man", was present at the Viking raid of Lindisfarne in 793 in Northeastern England, whereas the Viking Armor was recovered by Shay in North America.
I also noticed they misspelled the name of the Island. Calling it "Lindsifarne".
Berg vaguely knew about Shay. He had some idea of who he might be, but he didn’t know for sure who Shay was on the first day.
https://www.youtube.com/watch?v=Hm6dwpUZ2r0 (fast forward to about 3:13)
As for the Viking ancestor, Berg’s ancestor didn’t die during the raid on Lindsifarne. This means that he survived and probably continued to sail with his Viking clan. Which means he could have died while sailing in the North Atlantic.
https://www.youtube.com/watch?v=WVfe1EC-C4M (No mention of ancestor dying )