User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-2108119-20140805143749

This pretty cool, Unity and Rogue.

In ACU, Assassin Arno is working with a templar, hence the name "Unite"

in AC:Rogue you don't side with anyone, hence the name "Rogue"