After hearing news of Rainbow Six Siege getting a release date of October 13th this year we were then greeted with the fact that due to the backwards compatability that Xbox One will get that not only will Rainbow Six Vegas and Rainbow Six Vegas 2 be playable but that they will be included in the game for free.
Rainbow Six Siege is a new take on the Rainbow Six franchise where players will be pitted against one another in teams of five to either infiltrate a hostage situation or try to get out of one.