Video Game 'Halo 2' to Make Killing for Microsoft  LOS ANGELES (Reuters) - Over the next three days, in eight  languages and 27 countries, Microsoft Corp. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=MSFT.O qtype=sym infotype=info qcat=news"&gt;MSFT.O&lt;/A&gt; will  release its most important program of 2004 -- not a new version  of Windows or Office, but an epic tale of a super-soldier  defending the Earth from a mysterious alien force.