Covert Ops: Nuclear Dawn, otherwise known as Chase the Express (チェイス・ザ・エクスプレス Cheisu Za Ekusupuresu), is a video game created by Sugar and Rockets for the PlayStation, and released in 2000. On March 16, 2000 Activision announced that they had acquired the North American publishing rights to Sony Computer Entertainment's Japanese action-adventure game, Chase The Express. The game was then renamed Covert Ops: Nuclear Dawn for the North American market.
The player controls Lieutenant Jack Morton of NATO, the sole survivor of a terrorist strike on the Blue Harvest, an armored train. He is aided by Christina Wayborn throughout the game, the French ambassador's bodyguard and the NATO council. Traveling around the various carriages of the train, the player must defeat the terrorists, find the French ambassador, and prevent the terrorists from using a nuclear weapon.
The game is a third-person shooter, with other elements including puzzle solving, key searching, stealth and, at several points, driving the train. The game is divided into levels which take place on each carriage of the train, one such carriage may require the player to find key A that opens door B, while another could lead to a boss battle before disarming a bomb. The story here is not totally linear, events can change the entire game's course. The player can use hand-to-hand combat or ranged combat using a variety of weapons. Weapons can be customized using parts obtained throughout the game.
Source: Wikipedia, "Covert Ops: Nuclear Dawn", available under the CC-BY-SA License.