Key points of Map of Arsenal - Le Marais - Paris Stories, Nostradamu Enigmas and Multiplayer Missions - Assassin's Creed: Unity
Paris Stories
Nostradamu Enigmas
Paris stories - Critical Comedown
Difficulty level: 2/5
Reward: 400 Livres
Go to the marked area and use the Eagle Vision. You will find a reviewer whose review you need to steal. He is a civilian so, you cannot kill him. Around, there are several guards, but the area is not restricted. As long as you keep a low profile, and steal outside of their sight, everything will be fine.
Your second target, the censor, is in a restricted area. In the area, there are lots of guards, but the cennsor himself walks alone. Additionally, the entrances are also unguarded. This is why, you can simply walk into the area and kill the censor in a direct duel. There is high probability that he ill not be heard by anyone. After the assassination, escape the area and become anonymous.
Paris stories - The League of the Crimson Rose
Difficulty level: 3/5
Reward: 400 Livres
This mission requires you to complete Handful of Duelers. You can find it in Marais.
Go to the marked area and use the Eagle Vision. Talk to the two marked people and then, to the Crimson Rose. Right after the conversation, you will be attacked by the city guard. The opponents attack in three waves that are increasingly stronger, several opponents each. Around, there are your allies, but they are fewer in numbers than the guards. Your task is to defeat them and not let Rose die.
After the third wave, officer Chauvelin arrives. He starts running towards Rose, but his weapon is sheathed. You can run up to him and kill him with the hidden blade. If you are too slow, Chauvelin draws his sword and you will have to defeat him in duel. After you kill the guard, talk to Rose.
Paris stories - Crimson Sunset
Difficulty level: 2/5
Reward: 400 Livres
This mission requires you to complete The Return of the Crimson Rose. You can find it in Marais.
Start by reaching the marked area. There, you find two shooters and three duelers. They do not expect you and their levels are not too high. Pick your favored method and eliminate them all.
After you defeat the opponents, approach Rose. He throws a smoke bomb and attacks you. He is not too strong an opponent, but he has lots of health and strong attacks. Around, there are no other opponents so, you can focus on the duel itself. Defeat Rose to complete the mission.
Paris stories - The Great Escapist
Difficulty level: 2/5
Reward: 800 Livres
At the beginning of the mission, go to the quartermaster marked by the game. You can rob him you can kill him and loot his body. Around, there are few opponents so, do whatever seems the most convenient to you.
Your next task is to retrieve the rope hidden in Bastille. The stronghold is in a restricted area, but there are few opponents there and they are scattered. For this reason, you can hide, but not necessarily. After you are detected, you are going to fight, at most, several opponents only.
The majority of the doors are locked. You need to use the windows. The building's design is quite complex so, it is best to go ahead, after you go past the main entrance and enter through the window on the upper floor. Inside, turn left and go onwards. The rope should be on the right. Take the rope and return to the quest giver.
Nostradamus Enigma - Terra
Difficulty level: 2/5
The symbol is on the rooftop, atop the dome.
You will find the first solution in the garden, at the base of the statue in the center.
The second solution is on the flat portion of the rooftop of the nearby church. which neighbors the labyrinth. To learn the location of the third solution, see the map in Temple -> Paris stories.
The last solution is atop the tower in the center of the labyrinth.