The save file starts with the mission "New Friends, Old Problems" where you first meet Bonnie. The game begins to save from this moment, since it is at this moment that the save function is unlocked.
Saving provides instant access to all weapons, outfits, and completed achievements.
Currently only available in the regular version (not Undead Nightmare).
Installation: Copy save file to path: Documents/Rockstar Games/Red Dead Redemption/Profiles.