Tom Clancy's Rainbow Six: Rogue Spear

Rogue Spear is based on the same game engine and features gameplay and presentation similar to that of the original Rainbow Six. The game pits the counter-terrorist unit, Rainbow, against global terrorist organizations that in some cases have taken hostages or have armed themselves with weapons of mass destruction. Rogue Spear focuses on realism, planning, strategy and teamwork. (wikipedia.org).