They're Coming With Us is the seventh chapter of Uncharted 2: Among Thieves.
In this chapter, Elena and her cameraman, Jeff, join Drake and Chloe. Elena has been tracking Lazarevic because NATO thought that he was dead due to a bombing raid, and she and Jeff are attempting to capture him on film to prove that he is alive.
As the chapter begins, eliminate the enemies in the courtyard and team up with Chloe to push the heavy doors open as you make your way to the nearby aqueduct.
At the aqueduct, shoot the gas canister near the little car in the middle of the waterway to send it down stream. This makes up half of the walkway you need to reach the other side. Head left and boost Chloe up the ladder there so that she can lower it for you. On the next platform, throw one of the gas canisters that's there towards the other car in the waterway and quickly shoot at it when it's near the car to send it careening down the river to finish the walkway.
Hop across the river using the cars and head up to the next area. Once in the courtyard, look out for enemies positioned all around. Taking the machine gun turret out of commission is you priority here. Sneak around the area using the truck bed as a halfway point. Get around to the side of the turret and flank the gunner so that he can't use it against you. Use the turret to take out the rest of your enemies in the courtyard before reconvening with your friends.
Climb up the drainpipe then carefully make your way over the street as a tank passes below you. Make your way through the torn up building to reach a temple.
Head up the steps and into the temple to complete the chapter.