“Correct me if I'm wrong but some stuff in Redemption reminds me of stuff in Revolver, like Bonnie reminds me of Annie, and Twin Rocks remind me of the... Second level in Revolver? =P Are this intentional "tributes", or did it just happen like that?”
"We’ve said before that we consider Redemption to be really more of a spiritual successor to Revolver than a proper sequel, but there are some aspects of Red Dead Redemption that are a direct nod to the 2004 game – most explicitly and obviously the addition of Revolver characters to this week’s Legends and Killers Pack, but right you are that Twin Rocks is in fact based on the second level in Revolver. Keen eye!
Random, fun factoid: we actually got the original Red Dead Revolver voiceactors back to record new lines for their characters’ appearances in the Legends and Killers Pack, with the sole exception of the dude who played Shadow Wolf, who had a scheduling conflict due to his Twilight duties."