So I have bought the season pass for AC Unity, yet I've not found how to play the Chemical Revolution mission which is included as part of the season pass.

How can I play this mission?

2 Answers

The mission can be found in the Luxembourg District

Semi-Near the Restricted area as I marked on this map with an X

and it is considered to be a Paris Stories Mission.

The mission won't have any special symbol, it will have the regular Assassin's Crest Icon from the other Paris Stories Missions.

If you want to see someone play the mission watch this video. It even shows where to go precisely.

Check the ACU Companion App to find the exact location on the map.