If you buy Rainbow Six Siege on Xbox One this Fall, you'll get free copies of Rainbow Six Vegas

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During the Microsoft E3 2015 Press Conference, Ubisoft revealed that those who purchase Siege when its released on October 13 will be able to download the pair of Xbox 360 shooters for free. This follows the announcement that backwards compatibility is coming to Xbox One later this yea r.For all things E3, bookmark our E3 Hub

Marty Sliva is a Senior Editor at IGN. He once ate a whole blueberry. Follow him on Twitter @McBiggitty