Nightfire: The Sentinel and the Scorpion are fictional shoulder fired, reloadable, multi-launch rocket systems. The Sentinel can be fired in either unguided or TV-guided modes, while the Scorpion replaces the TV-guided mode with heat-seeking. The Scorpion is also available as a fixed weapon on some multiplayer weapon sets. Both weapons use the same model. Drake uses one of those models in the last level, when you vs him. In The World is Not Enough: