Visited Once
Complete all Co-op and Heist missions at least once.

---

Note: You can solo all of these, but it is not recommended as they are designed to be played with multiple players.

New to AC Unity are co-op missions. These are very much like the single player missions, except you can play with up to 4 players (Some missions only allow 2 players). You will use the same Arno you use in the single player, so it is best to make sure you have high level equipment and weapons before attempting these as some of them are hard, and you don't want to drag your team mates down. There are 11 co-op missions and 7 Heists that you need to complete at least once. The missions are as follows:

Co-op Missions

Heads Will Roll
The Food Chain
The Infernal Machine
The Austrian Conspiracy
Danton's Sacrifice
Jacobin Raid
Political Persecution
Les Enrages
Moving Mirabeau
The Tournament
Women's March
Heists

Tithing Templars
Catacomb Raider
The Party Palace
Royals, Guns and Money
Smuggler's Paradise
Ancient History
It Belongs in a Museum
Once you have completed it, the icon will turn gold instead of white; this makes tracking them much easier. To find this menu, press the options button, the "progress tracker". The middle column has the co-op mission progress. Once you complete all of them at least once, the trophy will unlock, even if you completed them all solo.