Red Dead Redemption More Screen Shots

There are some more screen shots out for Red Dead Redemption.  These ones are from the competitive multiplayer.  May 18 can not come soon enough.  Thinking about pre-ordering it from Amazon.  But not too sure if they will ship it out on May 18.  Would like to pick it up at Wal-Mart since it is right next to were I work.  How ever I can count only two times they had a game I was looking for on its releases date.