"Rainbow Six" game refines formula

Los Angeles, March 20 (Reuters Life!) - Fans of anti-terrorism tactics can lock and load this week with the return of the popular "Rainbow Six" franchise, which returns to Las Vegas promising fine-tuning of its realistic, fast-paced formula.

Released for Microsoft's Xbox 360 and Sony's Playstation 3 consoles, "Tom Clancy's Rainbow Six Vegas 2" follow the success of "Rainbow Six Vegas", which sold more than 1.6 million units in the United States alone after its 2006 release.

Tom Clancy-branded games -- "Rainbow Six", "Ghost Recon" and "Splinter Cell" -- have accounted for about a third of annual revenue at Ubisoft Entertainment, Europe's largest video game publisher.

Since 2000, when UbiSoft acquired the North Carolina studio that had been making the games for computers for two years, it has published 18 Clancy-themed titles that have sold a combined 50 million copies.

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