The Sum of All Fears

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Lead a team of domestic counter-terrorism experts through 11 dangerous missions that span the globe. Formed from the elite of the F.B.I.'s HRT, you have been tapped to perform covert ops in the most dangerous circumstances imaginable. As the commander of this team, you'll lead your unit into the heat of battle, performing missions ranging from eliminating terrorists to planting bugs, and destroying illegal weapon caches to rescuing hostages. You'll give them orders in the field and take the point in leading them into combat.

11 action-packed missions in realistic settings from around the world.
An intense storyline that parallels the novel and film of the same name.
From the makers of the award-winning Tom Clancy's games, Ghost Recon™ and the Rainbow Six® series.
Multiple difficulty settings plus a comprehensive training level.
An easy-to-use interface that lets players dive right into the action.
Use the latest in antiterrorist weaponry, including 15 unique gun types, flashbangs, and frag grenades.
Competitive and cooperative multiplayer support, including classic and all-new game types for solo and team play.