Microsoft has launched the next installment in their Halo series on the Xbox 360, Halo 4 and Microsoft has put together from their launch event on London which you can see below.
Microsoft are expecting Halo 4 to be their most popular game in the Halo series to date, it will be interesting to see if it is as popular as previous versions of Halo.
Watch this video on YouTube.
You can find out more information about Halo 4 over at the official Halo website.
Source Major Nelson