The latest Assassin’s Creed Unity trailer is a walkthrough of one of the new co-op Heist missions.
Heist missions are a particular breed of co-op mission in which you’re tasked with sneaking into a heavily-guarded compound, stealing an item, and escaping undetected. The more you’re detected, the lower your eventual reward, so ideally you want to ghost your way through. Things are made a bit trickier because these missions are pretty heavily randomised – the treasure might be in a different location, there might be more guards than last time, and the guards might be patrolling along different routes.
The below video shows a four-minute run-through of a heist at the Hôtel-Dieu, which is not a hotel but a hospital, just to confuse us poor English speakers. The Templars have an artifact stashed in the tunnels below it, and the players have been tasked with stealing it back, with the whole thing being narrated by Assassin’s Creed Unity‘s creative director Alex Amancio.