The multiplayer mode in Uncharted 2 that involves capturing a treasure is Plunder.
Plunder is a competitive mode modeled on capture the flag. Two teams fight over a treasure placed at a central location, then attempt to carry it back to their own base. The player holding the treasure moves much more slowly, making them vulnerable and dependent on teammates.
The carrier can also throw the treasure away, either to keep it from the opposing team or to pass it to a teammate. This small detail makes Plunder more tactical than a simple race to the objective. Teams must balance attacking, defending, rescuing the carrier, and controlling the route home.
Uncharted 2 introduced online multiplayer to Naughty Dog's Uncharted series. Its competitive modes supported two teams of up to five players, alongside cooperative modes for smaller groups. Plunder is sometimes confused with King of the Hill, which involves holding a capture area, or Gold Rush, a cooperative treasure-retrieval mode against computer-controlled enemies. Despite their similarities, Plunder is the named competitive treasure-capture mode.