Your mission is to kill three conspirators of Robespierre outside the Cafe Procope, but when you begin the mission two will be outside the Cafe Procope restricted zone.
I suggest you approach the two targets to the east and west first, beginning their walk to the Cafe, and then make your way to the Cafe. From the street, outside the restricted zone, hit one of the Defender enemies with a Berserk Blade to draw all three targets outside and then hit one with a Berserk Blade. Wait out the fight and the kill off any remaining enemies after the fight to complete the mission.
Jacques Roux’s lieutenants are trying to incite a riot in a crowd of citizens in the courtyard of the Hotel de Cluny.
The location in question is heavily guarded by Watchers, making a rooftop entrance pretty annoying. The best approach is to head to the east side of the restricted zone and wait for a clear dash to the sewer entrance to exit in the opposite courtyard where the target is. You can then blend with the crowds and shoot the target with a Phantom Blade before dropping some Smoke Bombs and escaping through the west exit.
An Engaging Egyptologist
The Brotherhood wants you to steal three rubbings of the Rosetta Stone, which may contain sensitive information about the Assassins, from some Templars.
Make your way to the waymarker and speak to Champollion just outside the gardens. Despite the guy saying he will help you, he doesn’t actually help you deal with the guards and wanders off on his own. Ignore Champollion and climb the building to the south and deal with the two Watchers before stopping on the western roof, looking down at the courtyard, to spot the target. Wait for the target to be at the western most end of his patrol before you kill him and then drop to the ground and loot his body.
Hug the fence and carefully make your way south, ignoring the two guards at the west gate, until you reach two large kegs and kill the Brute nearby. You can then climb the wall and air assassinate your target and loot his body.
Backtrack to the guards by the west gate and this time turn right and head straight to the final restricted zone. Take cover on the north side of the zone and use Phantom Blades to take out all the guards and the target to loot his body for the final rubbing. You can now exit the area to the east to complete the mission.