Couple things that are missing
One thing that's a bit annoying at times is when your beast companion won't get out of the way. You're in a hut, it's standing in the door like a good kitty, and you're blocked until you point and tell it to move. I would have made it such that if the beast is standing still and you bump it twice, it moves.
Also, when dismissing a beast, it should leave in the general direction you're looking. On more than one occasion, I'm prep'ing to take an outpost or a bonfire, I dismiss the beast and it runs through their camp. Bad kitty. Bad bad kitty >:-(
And the big one that's missing? This was one of those, "uhhh ... something's wrong" moments. I'm in a raging river just below a waterfall where the graphics are done so well you can almost feel the water spray ( good job UBI ), but ... there's no water current. At that point the only thing missing was the withering Pac Mac sound. Even Duke Nukem 3D from 1996 had water current fella's. Must add water current.
Aside from those minor things, the game is otherwise very good and in general I think hits the mark in the spirit of Far Cry. Absolutely stunning graphics.