Among the positive things:
Far Cry 4 looks amazing
The world is alive, large and invites you to explore
There are many small adjustments and improvements that make the game interesting, such. As the can "hunters" who use the animals for themselves and rushing on the player. In addition, they can be only temporary mark with the camera, then they disappear again.
Conquered outposts are not left alone but attacked by the enemy again at irregular intervals.
Missions where you have to choose which way to hammer, which in turn affects future missions.
so it is by no means boring and makes a lot of fun ... but a great game includes - as its predecessor - a gripping story and an opponent who leaves a lasting impression ... and there is weakening Far Cry 4 unfortunately enormous.
I think the backstory (Ajay, who returns home to spread to his dead mother's ashes only to discover that his country has fallen a dictatorship) not grabs me really ... if I now liberate the country and the ashes verstreue as desired is ultimately not matter to me. There I found the development of history in Far Cry 3 much better managed (exempting or lose their own friends) and also the development of their own character liked better. In Far Cry 3 has developed himself and his combat skills slowly. Here I have the feeling that I same as a fully trained Marine prefer to battle and only needs to increase and improve my equipment.
And Pagan Min as a great villain ... well ... might have been very interesting if you have noticed anything about him ... You seen him in Into, in a short cutscene and the boring and disappointing end ... oh no ... between he annoys a still swollen with monologues about the Walkie Talkie ... uuuuuhhhh ... I shudder ...
Vaas is in Far Cry 3 - as I recall - surfaced between 2 or 3 times (apart from the start and his death) and has a made life hell ... always unexpected and always so sick that I shiver down the spine ran. This is completely absent here. Had Pagan Min would not have been let off the game with a much worse and so intelligten as disturbed dictator might have been in the story certainly can start much more. Too bad that this potential has not been used.
Long story short: The game is not bad, is fun but not fulfilled my opinion, the high expectations that you have when you've played the great predecessors.