Rockstar have announced that they are awarding double XP from today, December 24th, until January 3rd 2011. All online multiplayer activity will earn double the amount of XP during this period.
In a post on Rockstar Newswire, the publisher said:
In the spirit of giving, we're opening up a whole week's plus of Double XP for all players of Red Dead Redemption online... Happy holidays and wishes for a great 2011 to all Rockstar and Red Dead fans worldwide. Enjoy!If you needed a push to get you all the way to level 50 in multiplayer, then this should be it!
We've got the full list of Red Dead Redemption achievements - check the list for guides to unlocking them.