The main campaign features 30 collectible pieces of intel that award the player with game cheats and visual filters such as infinite ammunition, cluster grenades, and increased contrast. The mission itself has no bearing on the campaign plot, and focuses on an SAS squad fighting terrorists that have hijacked an airplane and taken a VIP hostage.
After completing the campaign, a special epilogue mission is unlocked for play. Some objectives require that the player arrives at a checkpoint, while other objectives require the player to eliminate enemies in a specified location, stand their ground to defend an objective, or plant explosive charges on an enemy installation. Each mission features a series of objectives the player is led to each objective with the heads up display, which marks its direction and distance. As such, the player's perspective changes from one character to another between missions.
The characters' involvement in the plot occurs simultaneously and overlaps the events in the game. The player takes on the role of various characters during a single-player campaign.
