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''Call of Duty: Black Ops'' is a 2010 first-person shooter video game. The game was developed by Treyarch, published by Activision, and released worldwide on November 9, 2010 for Microsoft Windows, PlayStation 3, Xbox 360, and Wii consoles, with a separate version for Nintendo DS developed by n-Space. Announced on April 30, 2010, the game is the seventh installment of the ''Call of Duty'' series. It is also the first to be set in the Cold War and the fifth to be set in World War II. It is the third in the series to be developed by Treyarch, and is the first sequel to ''Call of Duty: World at War''. Within 24 hours of going on sale, the game had sold more than 5.6 million copies, 4.2 million in the U.S. and 1.4 million in the UK, breaking the record set by its predecessor ''Modern Warfare 2'' by some 2.3 million copies. After six weeks on release, Activision reported that Black Ops had exceeded $1 billion in sales. On August 3, 2011, Activision confirmed that the game had sold over 25 million copies worldwide, making it one of the best-selling games of all time in the US, UK and Europe. A sequel, ''Call of Duty: Black Ops II'', was released on November 13, 2012. ''Call of Duty: Black Ops III'' was announced on April 9, 2015 as the fourth installment in the ''Black Ops'' series and was revealed on April 26, 2015 with a release date of November 6, 2015. ==Gameplay== ''Black Ops'' is a first-person shooter, retaining the same gameplay mechanics as previous ''Call of Duty'' titles. The player assumes the role of a foot soldier who can wield various firearms (only two of which can be carried at once), throw grenades and other explosives, and use other equipment as weapons. A player close enough to an enemy can kill with one knife blow. A character can take three stances: standing, crouching or prone. Each affects rate of movement, accuracy, and stealth. The player can drop to the prone stance from the standing stance while running, and can momentarily sprint before having to stop. The screen glows red to indicate damage to a player's health, which regenerates over time. When the character is within the blast radius of a live grenade, an on-screen marker indicates where it is in relation to the player, helping the player to move away or to throw it back. Among the weapons new to the series in ''Black Ops'' are crossbows with bolts and explosive ammunition, Dragon's Breath rounds and ballistic knives. The player assumes the role of various characters during the single-player campaign, changing perspectives throughout the story. The playable characters are special forces operatives conducting black operations behind enemy lines. In this way, the player's characters have their own traits such as voices and shadows.〔 Each mission features a series of objectives that are displayed on the heads-up display, which marks the direction and distance towards and from such objectives as it has been in the earlier versions. The player is accompanied by friendly troops throughout the game. Although primarily a first-person shooter, certain levels feature sequences where the player pilots a Hind helicopter and guides friendly troops from a SR-71 Blackbird reconnaissance aircraft. The campaign features several scripted cinematic moments. One of them is a bullet time effect during the "Victor Charlie" level, activated when the player fires toward the last enemy of a Viet Cong squad. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Call of Duty: Black Ops」の詳細全文を読む スポンサード リンク
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