10 new trophies for this DLC

Bronze

Call it a Comeback!
Come back from a 2-0 deficit and win a Hold Your Own game.

Who needs Deadeye?
Kill 3 or more players in a standoff or showdown.

Stick and Move
Get 3 kills with knives or throwing knves in a single competitive match.

Double bagger
Double capture 3 times in a single Gold Rush map.

Headhunter
Kill 5 players via headshot in a single Shootout or Gang Shootout.

Hail Mary
Get a kill greater than 35 yards with a Tomahawk.

Axe Master
Complete all Tomahawk challenges in Single Player.

Original Gunslinger
Get 25 Deadeye kills with Red.

Reeeeal Good
Get 25 Dynamite kills with Pig Josh.

Silver

Legendary
Reach level 50 and pass into Legend.

http://www.ps3trophies.org/news/news-1476-DLC-Added--Red-Dead-Redemption.html