You've received your assignment, hustled into a helicopter and skillfully maneuvered into the murky abyss of a mysterious land — with one deadly mission on your mind. You slip and sneak through dangerous territory. You spot an enemy in the distance and raise your rifle as you aim with precision. With a nearly silent pop he drops lifelessly from view, as you press on, planting explosives to carve your way through secured fortresses, removing classified information and leaving only a trail of smoke in your wake. Welcome to a new kind of war. Tomorrow, the government will deny that your operation ever occurred. Your location will be obscured. Your alibi will be written. The war will be erased from history. But today, you bask in the glory of a perfect kill.Venture into five diverse maps that span the globe, including four multiplayer maps and a new zombie experience with the exclusive First Strike Content Pack. From the close-quarters combat of the Berlin Wall map to a trap-filled, Cold War era cosmodrome full of perk-stealing zombie monkeys and Soviet zombies, this First Strike Content Pack adds exciting, all-new gameplay to Call of Duty: Black Ops. Descend into the explosive combat with force and all-new technologies to destroy the enemy, including new Killstreaks like Napalm Strikes, a remote-controlled explosive device and controllable helicopters. A deadlier mission than ever requires the most intensive Combat Training yet — hone your tactics offline against A.I. bots in both Free-For-All and Team Deathmatch modes and earn COD Points to purchase equipment, attachments, perks and new customization options. Further test your nerves and weapon skills in point-gambling Wager Matches, and celebrate each epic kill in Theater Mode. You are being summoned — do you have the courage to answer a grave new Call of Duty?