This mod replaces the Dark Horse with the War Horse (the first horse you get in the game).
Installation: 1. Using MagicRDR , open the file at the following path: Steam/steamapps/common/Red Dead Redemption/game/fragments.rpf. 2. Find the file from the mod folder, right-click on it, and replace the files with those provided in the mod. 3. After that, save the file.