This afternoon Naughty Dog released Title Update 1.05 for Uncharted 2. The update adds thirteen new multiplayer medals as well as a number of tweaks.

Weapon damage and attributes have been rebalanced
On-screen display of medals awarded during a match has been updated
Implemented detection and removal of flagrantly idle players from the active matchmaking player pool
Cash penalty for leaving matches has been adjusted and is now tiered by player level as follows:
Levels 1 – 20 = -10,000
Levels 21 – 40 = -20,000
Levels 41 – 60 = -40,000
Updated player networking protocols to remove all occurrences of “error syncing player data,” Level resets and Ranked playlist Skill Level resets
Added crawling ticker display of leaderboard statistics to the multiplayer menu screen
Updated multiplayer menu screen to include a “Trophy” selection to enable players to display and track progress on the new Trophies included in the Drake’s Fortune Multiplayer Pack
Collision and geometry updates to various multiplayer maps
13 new medals have been added
Defender - Kill a player that is actively shooting one of your teammates
Finish Him! - Get the last kill of the game
First! - Get the first kill of the game
Fly on the Wall - Kill a player who is climbing
No Cigar - Kill the treasure carrier while they are about to score the treasure
None Shall Pass - Get 5 Kills while in the hill during a King of the Hill game
Protectorate - Shoot and kill 5 enemies that were damaging the treasure carrier
Put’em Down - Kill someone in the knockdown state with a pistol weapon
Retaliation - Kill the last player that killed you
That Was Embarrassing - Earn a shutout in plunder
Tip Off - Be the first player to grab the treasure in a plunder match
Tricky - Kill a player with a pistol weapon while hanging
Unlucky - Die 5 times in a row without getting a kill
Next week, Naughty Dog will release new maps and skins based inspired by the first Uncharted.