The whole game is genius, from the gameplay mechanics, to music, to story, everything is so well put together, Rockstar really gave their best (they naturally do in every game) with this. From getting together with your family, where the missions suddenly go to a calm tone, where you just do these things for your farm, you always wonder why the game didn't end, john got what he wanted.
Then, the mission "the last enemy shall be destroyed" and i thought, "does this means what i think it means?", then the cutscene starts, and his son starts talking about planes, "them machines who could turn men into angels", and when he says that, john repeats it, with the camera focused on his face. Later on, we discover what this phrase meant, when the g-men attack his farm, and he gets shot in that incredible scene. The game could've ended with the shot of his cemetery, but it kept going, 3 years later, his son comes back to this old farm, and buries his mother alongside john and uncle. you go to blackwater, and see that there's a new journal to buy, you get it and discover what happened to the people you encountered during john's journey. but there's little article in this journal, about how edgar ross got a chest full of medals (like john got his chest full of bullets) and how he defeated the menacing dutch van der line gang, including john in this article.
Then, there's this last stranger mission, where you go after edgar ross through the whole landmass of the game, even down to mexico, where you finally meet him. You finally confront him, kill him, and jack just look at his gun, probably thinking "that's it?" and he turns around, facing the camera, and a guitar riff accompanies the RED DEAD REDEMPTION title card. then deadman's gun starts playing during the credits.
Holy fuck, this ending sent chills down my spine. The game goes full circle with the title (which is one of the most badass titles of history, RED DEAD REDEMPTION), john gets his redemption giving his life to his family. and you see the bittersweet fate of jack, where he becomes what his father never wanted, an outlaw. John died with the old west and as an outlaw to society. even the fucking slogan for this is perfect. Outlaws to the end