SUPER TL;DR POST (which only took like 10 minutes to write, surprisingly)
Yes it's me again. I finished the game. This is the Stats screenshot just before I did the last thing in the game that triggers the ending... There isn't really a spoiler in the image, it's just that the image is large.
I rarely play first person shooters that require 35h to go through. Although I did complete a lot of the side missions etc.
So, how do I rate this game? Pretty highly I think. Somewhere between 8.5 and 9 out of 10. I had more fun with it than I had with the following games I bought in the last year: Assassin's Creed, Crysis, Spore, The Witcher (if your complain about Far Cry 2 is that many of the choices are semi artificial and that the gameplay outcome is pretty much the same, I think the same can be said of The Witcher...), Sins of a Solar Empire, Grand Theft Auto 4 and maybe Mass Effect.
I actually liked the story and didn't forget about it as soon as I was doing something else in the game (which seems to be a complain). I kindda liked the fact that it wasn't a story that was forced down your throat and you were free to feel as detached or involved in it as you wanted. Of course, the ending itself could have been a lot more developed, oh well... I really liked coming across Jackal Tapes, or Predecessor Tapes. I especially liked the Jackal's "Gluten-Free Bread" rant... You can find it in the Dogon village, if I remember well.
But I absolutely loved the setting and the physics of the game. Sure, the tasks were repetitive, but for me it was all about the different locations and approach you could pick. Yeah, you could always pick the same load out and do it the same way, but I tried many things and had some intensely fun gun fights. I definitely agree with the people who complain about the respawn of guard posts though. I think it's not asking too much to expect that within one mission I should have to fight through a road block only once... A respawn of once a day would be enough. The game's engine probably doesn't allow for this (I guess there's an easy "respawn as soon as player is at distance X" thing implemented... I wonder how much work it would be to mod this differently... But Ubisoft is like EA in terms of modding, they just don't understand it's the lifeline of many games on PC).
I also wish I could have differentiated, on the field, the APR and the UFLL guys. They just seemed to all look the same (?). They should also have fought each others, and not just me. It really didn't work that the guys giving you mission justified the murder of 100 guys of their own clan because "you're working undercover, even our boys will be hostile to you"... Lazy programming.
Another complain I have is the reputation system. It seems there was something intended there, but they just left it out. What's the point of Buddy missions? I'm not talking about the main objectives that you subvert (these add stuff to the safe houses, at the end my safe houses spawned trucks with grenade launchers all the time!), I'm talking about the missions you pick from your buddies at Mike's Bar, voluntarily. The only reward is reputation and building history. This has no effect whatsoever on the game as far as I can tell. The guys in town reacted differently to me depending on my reputation... But that's it. Only cosmetic? I'm sure there was something more to it? At some point I thought I noticed that guards were less likely to run after me when I ran through guard posts if I had a high reputation, but then I thought that maybe it was just me getting better at driving right through them, hehe.
But yeah, the landscape, gun fights, explosions, and enemies were really fun and kept me wanting to play again and again. The AI was weird, I don't know how to describe it. I'd say there's something awkward with stealth. It's still possible but you gotta get used to it. It's particularly annoying when snipers spot you in the grass at night one mile away because you got up for one second. But I thought the AI was actually pretty good at reacting to noise and fire and explosions. If you created havoc somewhere and stealthed your way out to somewhere else, you could divert their attention and they'd be looking for you in the wrong place. Even gun jammings were sort of cool. It's a concept that needs to be worked on and considered in future games. I almost wish there had been less available ammo and guns in the game so that running out of bullets and guns jamming became more of a real problem (because right now it's too easy to replace them). I'm pretty sure I'm about to start a game with higher difficulty and see if it changes anything.
So yeah, I really liked the game for some reason. I still understand that there is much unused potential in it though, but I enjoyed the hell out of it as is.
As a final note: Something weird happened to me. When I was tasked to murder an important guy, I entered the hut and he looked at me and said "Simon! What happened". I was taken aback since my name is Simon, but then I laughed it off when I realized my character's name was Simon... Except wait, it's not, a day later I checked to make sure and my character is Frank Bilders. What the hell happened? Did I mishear what he told me? Is my computer possessed?
EDIT: I'm going to add that after having spent 2 hours in multiplayer, this aspect of the game is pretty much crap compared to the competition (CoD 4, etc.)