The story fell apart after reaching the Atlantis of the Sands and when Sully was "shot".
It could have been a really great ending, Drake finds the treasure and a secret about the Atlantis of the Sands and Sully could have almost died, or actually died if ND wanted to troll us and make a dramatic ending.
So much potential for a great wrap up to the series that would have made it better than Uncharted 2 in my opinion, but they had to go with that "hallucination" crap.








