The first Uncharted is mostly recognized as the weakest of the series, and I can see why. I really don't like how the game starts, you go from opening a casket to just being a serial killer soon after, and Elena has no idea what type of person you are, but it looks like you can kill any group of man that the game throws at you. That's my main criticism with the game, it's just too much meaningless shooting. You just keep killing waves of enemies that don't even make sense, they could easily reduce the amount of guards to half or even less and still make it a fun game.
The shooting is not as good for them to make you shoot most of the game, not to mention the fact that the amount of people Nathan kills, on a place where nobody is and just a few can get there, it really hits me the wrong way. That said, the game looks great for the time it came out, the dialogues are very good, the story is good, the puzzles are great with the use of the diary from your ancestor. Just wish it would have a better pace to it.
Sometimes, when you are trying to climb around, the camera is really bad. Making you get frustrated by jumping to the wrong place.