Just finished the game and loved it and wow that last level, holy shit that was awesome, bravo Naughty Dog. It takes Uncharted 2's train to a whole new level. It's just insane and one of the best action set pieces in video games. It's amazing how it all just flows together with no loading in between.
Going from chasing the train in a Jeep, with bikes chasing / shooting at you.
Jumping onto the train and fighting your way up the train. With enemies on the train, aswell as bikes, Jeeps and trucks shooting at you from both sides of the train.
Jumping back to a Jeep, then back to the train.
Then another jeep and then grapple a truck, getting dragged behind it, before climbing onto it and using the mounted gun turret to blast other vehicles.
Then back to the train to reach the front.
Then another Jeep chase, away from the train to the signal station, to switch the tracks.
Then catch back up with the train and crash the Jeep into the train.
Then the final battle before the train gets to the broken bridge.
The whole sequence is stunning and one hell of a ride. I can see myself replaying that level multiple times, just for how fun it was. If this is the last Uncharted game, then it went out on a high but I would happily play another with Chloe and Nadine again.