Besides the game's traditional single-player campaign and the famous Merc vs. Spy competitive multiplayer there is another multiplayer option for cooperative play. In this you can play as one of the two unnamed Splinter Cells to complete objectives that would be impossible to do alone so cooperation is esential.
This page contains co-op info for Splinter Cell 3 - Chaos Theory on the PC. All information about Splinter Cell 3 - Chaos Theory was correct at the time of posting. Information is subject to change. If you see any errors please email us.