Then the game opens back up for a bit, and eventually Bayek finds the guy who originally was responsible for his sons death and kills him. This is the emotional climax of the story and Bayek more or less calls his revenge over. However, Aya, pissed that Egypt is going to become another Province in the Roman Empire and not remain independent as apparently they were promised by Cleopatra, decides to go to Rome to continue the revenge spree. Also, Caeser is the head of the Order of the Ancients. apparently, which you find out pretty late in the game and it's unclear just when this happened or if he was always a member. It's just kinda dropped there in the end game so you have an excuse to go stab Caesar in the forum.
So naturally this leads Aya taking a boat to Rome (it takes her like 2 years to get there for some reason, based on the time skips), fighting another boss battle against another one of the Order dudes, crossing a heavily patrolled plaza in Rome(no, you don't get to see the rest of the city) and Stabbing Caesar in the Senate before going back and telling Cleopatra to kill herself. Because of course that's how the game has to end. Yes, I realize the assassination of Caesar is a big moment in world history, but it feels like it's here for that reason and no other, because damn if it doesn't feel tacked on.
Oh, and Aya uses a totally different moveset and weapons then Bayek, a move set you pretty much haven't gotten a chance to try out because you've barely played as Aya. In Fact, despite apparently taking down a few Proto-Templars on her own, you barely get to see her do anything. Apparently at one point she was supposed to have a much larger role in the story, but some higher ups at Ubisoft basically killed it(for misogyny reasons) and that would do a lot to explain why her story feels so incomplete and choppy. Don't get me wrong, I love Bayek as a character but Aya was done dirty. Basically, much of the endgame feels very rushed and uneven in quality, in stark contrast to much of the rest of the game where you could tackle shit at your own pace, explore and do interesting side missions(and they're actually pretty good for the most part).
I'm not joking just how much fun I had exploring the varied land of Egypt and finding secrets and tombs and quests all over the place. Even as compressed as the map is(the desert in the middle of the map much smaller than it really should be but is just big enough to convey loneliness and isolation without making the map a pain to traverse from the west and east sides), it FEELS really big. It is unfortunate that the game is divided by levels which more or less funnels you down a certain path and tells you in aprox what order you'll see the game. I also appreciate how they took great pains to depict Egyptian culture and religion in this game, and how Bayek is a devout believer of the old religion, so this is all part of life to him in a way that few other games do. Notably a sequence where he has nightmares of fighting a massive mythical serpent in the underworld for the sake of his son's soul getting to go to the afterlife. Apparently this is common for him due to his guilt, but it's a fantastic set piece.
There's a number of other issues that rear their ugly head in Origins aside from this. While the RPG mechanics had been popping up in the series for a while now(notably with Unity), this game and odyssey really cemented the series wanting to be an RPG and not just an action/stealth/platforming. It's particularly bad where you have to find resources to upgrade your hidden blade and armor and such to make them actually keep up with the enemies, as well as leveling up and allocating points on a skill tree and god damn is it frustrating to ambush someone with the hidden blade only to not have it kill them because you were 2-3 levels below them(and thus your blade isn't fucking strong enough to stab them to death or something).
Bayek is a devout follower of the Egyptian religion and apparently believes that grave robbing is wrong. Guess what you end up doing a lot of and Bayek more or less doesn't care? And yet, there are certain things you can only find in tombs and the tombs are quite interesting to explore, feeling very tomb raider-ish at times. Especially if you want to find all the hidden ISU sites which are all buried deep under Egyptian tombs. Of course, the only thing you really get from the ISU sites are to listen to some vague but ominous recordings and some silica. You also need to find a bunch of stone circles dotted across the map(denoted by a crude map in a chamber beneath the sphinx) each based on a constellation. And after you find all of them and a bunch of silica, you get a fancy cosmetic armor that looks like iron man....because why the fuck not?
The recordings contain messages and pictorial messages from one of the ISU, and these are for Layal because Bayek can't see or hear them. When I played them they intrigued me because of the warning that something bad was coming in the future but not what, hunting the MD of the series might be getting back on track. Of course, now we know it was just "Oh, nobody turned off the big solar shield after AC3 and that's also bad". There was something wonderful about finding these clues that might be important down the road, which to me was always one of the cool parts of this series. I was hoping these clues were all going to mean something a couple years down the line as they developed the MD story. And yet again, Ubisoft smashes those hopes by basically not knowing what the fuck they want to do with the story and letting those hints be meaningless. In the words of the Prince from Prince of Persia: Two Thrones "Hope only leads to disappointment". Yes, that game was made by Ubisoft. How unintentionally prophetic.
And since we're on the ISU thing, it does feel like you can't hit a rock in Egypt(Greece has this problem too) without hitting a fucking ISU tomb or something, which begs all sorts of questions about the overall plot with the Templars running around digging this shit up since the beginning of time(And that's apparently the Order of the Ancients primary goal in life, when they aren't being dicks for the lols). Oh, and remember that whole thing about the Order threatening Bayek trying to get into the ancient vault under Siwa that kicked off the plot? Well, they finally get it open late in the game and inside is an Apple that projects a map of the earth. Yep, the whole point of that was to show that this is the apple from the original Assassins' Creed that somehow ends up under the Temple of Solomon a thousand years later because Altair needs to find it there(also the Arc of the Covenant, apparently but that is never mentioned again).
Oh, and there's also a weird as fuck crosssover in one mission where you need to open a sealed tomb with a sundial outside that you find by following a meteor. When you open it and go inside, you find Ardyn from Final Fantasy 15, who says a few words and then drops a big fantasy type sword and fucking vanishes never to be seen again. It's a really WTF moment and feels really out of place even in this game. Almost as weird is that you can go out into the deep desert and fight a giant digital representation of a random Egyptian god(Sekhmet, Anubis and Sobek). It's an animus glitch apparently and It's there because it's a video game. Bayek doesn't acknowledge it happens at all.
The game also throws in some boss battles just for the sake of it. In the main quest there's a boss battle where you fight a war elephant around the same time you are chased by a war elephant and firing at it while in a chariot with Caesar during an action sequence for reasons, which is fine. Less so is the fact you can find pens with War Elephants in them that you can fight as boss battles because....video games I guess. I can only assume they're there for people who really wanted some bonus bosses to fight so they just put some elephant battles in the game, not that they're particularly interesting. As far as I can tell they basically play the same as the one you have to do in the main campaign but presumably harder. Aside from adding content for the sake of adding content, there's not much point to it.
I would be remiss if I didn't discuss the DLC of the game. The Hidden Ones, the first of the two, is okay, but nothing amazing. It's mostly a new area where Bayek goes to help out some Hidden Ones in the Sinai and does some new missions and such. OTOH, the Curse of the Pharaohs DLC is quite the experience. Bayek goes to Thebes because of supernatural happenings and when he arrives. he finds out long dead Pharaohs have been appearing and terrorizing the population. Thebes is also close to the Valley of the Kings and the DLC involves you tracking down the Pharaohs when they appear(and they do every so often) and fighting them in a boss battle, before following them to what's essentially the afterlife. Not just the afterlife, 4 different versions of the afterlife, one for each Pharaoh and each on it's own separate map.
While it's weird as fuck and never really explained(and nobody, not even Layla, even remarks on this), the Afterlife bits are the best parts of the DLC by far, especially since not only is each one a decent size, each one is notably different then the others. While they're all implied to be somehow connected to, guess what, an ISU magical ball, the objects Bayek brings back with him out of the afterlife don't disappear once he leaves, they're tangible physical objects and that implies they're somehow real.
If I have to complain about anything it's that the battles in the real world(not the afterlife) have to be completed within a time limit or else the undead pharaoh disappears and then you have to wait until he shows up again to restart the battle. To sum up, Origins is arguably the best of the newer games but has it's flaws.