I found a way to board ships in Assassin's Creed 4 without fighting them. It works in AC: Rogue as well. I'm not sure if people already knew about it...
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https://www.youtube.com/watch?v=VhyCuNe2nQU
Live performance of The Trooper by Iron Maiden. To download, go to http://adf.ly/1bYuVS.
LYRICS
You'll take my life but I'll take yours too
You'll fire your musket but I'll run you through
So when you're waiting for the next attack
You'd better stand there's no turning back
The bugle sounds as the charge begins
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https://www.youtube.com/watch?v=u4F_SGBp5z8
I decided to livestream me playing with my friends on Overwatch. Please note that I do not talk in this video.
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https://www.youtube.com/watch?v=y_KuVWMxVK4