Heartwarming / Red Dead Redemption: Undead Nightmare

• The opening cutscene, before everything goes to hell, showing the Marston family actually acting like a family, something that was sorely lacking in the main game. Stuff like Jack and Abigail teasing each other, or Jack starting to ramble about Aztec Mythology while John watches, clearly proud of how intelligent his son is. Even after Jack and Abigail get zombified, it's strangely touching to see John still trying to take care of them even when they're unintelligible and trying to eat him.
  • One of the random quotes John says when looting a dead body is something like "Jack, Abigail, the things I do for you." It really goes to show just how far John is willing to go if it might save his family.
• Weirdly enough, a lot of the scenes involving Seth could be seen as heartwarming. The game's universe was already sucky before the zombie apocalypse, and Seth was no exception. He was an outcast who basically had his dream of finding a treasure crushed. It's strangely nice to see that even if the world is on the fast track to hell that at least one person's life was very much improved by it.
• The Missing Person's missions. The families and friends of the people John rescues are so happy, they give John bullets as a "Thank you", with the family of the first rescued person rescued giving him the Semi-automatic Pistol as a token of their appreciation.
• In a sort of bizarre, twisted way, John coming back as a Revenant Zombie in the post-game can be seen as this.
• After clearing out MacFarlane's ranch of the undead, Bonnie MacFarlane will slam open her door, march up to John and glomp him in a hug. After all she's been through with zombies attacking her ranch, it's clear she's just happy to see a friendly face.
  Bonnie: (Upon seeing John) "First hell walks the earth, then you turn up. Can my week get any worse?"