"Red Dead Redemption" doesn't just have a strong single-player component. The multiplayer easily bests any of Rockstar's previous multiplayer efforts, allowing players to ride the plains and complete missions with their own posse of friends.
When you hop into multiplayer for the first time, you'll notice that you're not playing as John Marston. Instead you'll be given a random base character taken from a handful of different groups. Oh, and that awesome horse you had in single-player? Yeah, replaced by a mule. Completing missions and scoring kills in multiplayer will grant experience which will allow you to rank up and unlock new playable characters, weapons and mounts. There are 50 ranks, as well as a Prestige-style "Legendary" mode which allows players to revert back to Rank 1 once they hit 50, but with the added benefit of fancy new unlockables.
Since hitting level 50 is likely to take many, many play sessions, I thought it'd be a good idea to let you know what you're working towards. Here's the breakdown of the unlockables in "Red Dead Redemption" multiplayer.