Plot hole: Drake is supposed to be discovering lots of things in the game for the first time, yet every secret door or area he explores, there's always enemies there. If he's supposed to be the first one there, how can the enemies be there before him?
Plot hole: When Nate discovers Francis Drake's corpse, he decides to leave his ring with the corpse. During the events of Uncharted 3, however, we discover that Nate needed the ring to take the treasure from Marlowe. A plan that he and Sully had devised since Nate's childhood.
