User blog comment:Damac1214/Modern Warfare 4 supposedly leaked, Captain Price to return (UPDATE - Confirmed False)/@comment-1055346-20121030160836/@comment-3967954-20121030204043

The fact that Ultor Corporation features in both Saint's Row and Red Faction and that some of the easter eggs in Red Faction: Guerilla reference to Saint's Row is a pretty clear indication that the Red Faction universe is the same universe as Saint's Row, but much further into the future.