Convoy

Uncharted 2: Among Thieves Guide - Walkthrough

Convoy

With Elena back at his side, Nate pursues Lazarevic' troops who brought Schäfer along, who had the Phurba.

There are no treasure pickups on this level.

Start this chapter off nicely by pulling the soldier off the truck.  Start off by shooting the enemies around you while you keep on truckin'.  It doesn't take very long, however, until a truck shows up with a soldier stationed behind a turret that fires grenade rounds.

At this point you'll need to switch to other trucks the moment yours catches fire, and Nate will always point this out.  After switching trucks several times and still shooting all soldiers around you, it looks for a moment that there are no trucks nearby, and the one with the grenade launcher appears to be gone as well.

Quickly jump over to the right side of the cliff and you'll land right on this truck.  After dealing with the soldier, you're now in control of the turret, and Elena's yellow car comes in sight as well.  Shake off all other enemies by blasting all other trucks except Elena's. 

It doesn't take long before you'll have to leap back over to Elena's car.  The chapter ends here.