Assassin's Creed Unity is one of the only games in the franchise worth playing and revisiting. It's the last good game in the series as well. There's much more emphasis placed on stealth gameplay. Assassin's Creed Unity is more of an evolution of the original Assassin's Creed. Chain killing has been removed, though you can still parry and stagger enemies in open combat. Unity has plenty of weapon variety and customization options for the character. Pole weapons, axes, one handed swords, maces, cleavers, much more. Though you have to enter numerous sub menus just to change your gear. The game needed some sort of radial menu to swap out weapons.
The story isn't too bad either. As a character, Arno doesn't amount to much more than a retread of Ezio in Assassin's Creed II. I liked the situations that Arno was placed in, however. Unity was pretty interesting if you find the time period of the French Revolution interesting. For a good chunk of the game, you're on the side of the French Royalists who defend the monarchy. Some missions have you doing activities such as destroying letters of correspondence between King Louis XVI and the Parisian leader of the Assassins, there's another mission where you put a stop to an assassination attempt on King Louis XVI, and you bring an end to the Reign of Terror when you capture a stereotypical demonized Robespierre. In Assassin's Creed Unity, the Reign of Terror is portrayed as though it were some sort of Templar conspiracy to gain control of the middle class through paranoia. When Unity first released around the end of 2014, there were a few leftist French critics who condemned the game for fueling counter-revolutionary narratives, but Arno speaks in favor of the French Revolution when he talks back to his assassin mentors from time to time, so the game isn't wholly counter-revolutionary.
It's a natural course of action for conspiracy theory cliches (Unity's depiction of the Reign of Terror) to come about through a counter-revolutionary narrative, and conspiracy theories are part of what made the original Assassin's Creed compelling. If anyone claims that Assassin's Creed Unity is purely counter-revolutionary it just exposes that person as short-sighted.
If there is anything weak about Unity's story, then it all comes down to Arno and his Romeo/Juliet romance with Élise . Arno is born to an Assassin father, then later on Arno is orphaned and the Parisian Templar leader adopts him. Arno's adopted father has a daughter (Élise) and she eventually joins the Templar cause while Arno follows in his biological father's footsteps. Even though Arno and Élise are of two different factions they love each other. As the French Revolution comes to a head, the Parisian Assassin leader and the Parisian Templar leader wish to secure their power structures so they sort of come to a temporary truce. And with Arno as protagonist, we see the story through his eyes and he longs for the days of security from his childhood. That's also why Unity gives the impression that the populist revolutionary movements are wrong, though some of the antagonists in the game have compelling viewpoints. There was plenty of nuance in the story. Arno was just too weak of a protagonist. Ezio playboy 2.0 doesn't fit this type of story that well. A more ideologically dirven protagonist could navigate the mess of the French Revolution and find a better alternative. Unity raised a lot of questions regarding stagnation, extremism, corruption etc but everything gets swept under the rug in favor of Arno's romance with Élise.