Costas

Driving Mr. Bellic You unlocked the special ability of Roman's taxi.

Let Sleeping Rockstars Lie You killed a Rockstar in multiplayer.

One Hundred And Eighty You scored 180 with 3 darts.

Pool Shark You beat a friend at pool.

Full Exploration You unlocked all the islands.

Impossible Trinity You completed the mission "Museum Piece".

Cut Your Teeth You were successfully promoted up a rank in multiplayer.

Walk Free You successfully lost a 4 star wanted rating.

Berserker - Kill 25 Helghast with melee attacks Kill 25 Helghast using melee attacks

Team Creator Build and save a level with more than one player with the thermometer more than 30% full

Gracefully Taken You completed the mission "I'll Take Her".

That Special Someone You completed the mission "That Special Someone".

Half Million You have amassed a fortune of $500,000.

You Won! You have completed the story.

King of QUB3D You beat the high score in QUB3D.

Demonslayer - Kill Radec within 20 minutes Kill Radec at Visari Palace within 20 minutes

One Man Army You survived a 6 star wanted level for a full 5 minutes.

Assassin's Greed You completed all 9 assassin missions.

Order Fulfilled You completed all 10 Exotic Export orders.

Retail Therapy You unlocked the special ability of buying guns from Little Jacob.

Master Conductor - Electrocute 3 Helghast Electrocute 3 Helghast with a single burst from the VC5 Electricity Gun

Liberty City Minute You finished the story in less than 30 hours.

Courier Service You completed all 10 package delivery jobs.

Under The Radar You flew under all the main bridges in the game.

Melonpopper - 15 headshots using the sniper rifle Get 15 headshots using the VC32 Sniper Rifle

That's How We Roll! You unlocked the special ability of Brucie's helicopter ride.

Sightseer You have taken all variations of the helicopter tours of Liberty City.

Gobble Gobble You got a turkey in 10-pin bowling.

Dial B For Bomb You unlocked the special ability of Packie's car bomb placement.

Cleaned The Mean Streets You caught 20 criminals through the police computer.

Chain Reaction You exploded 10 vehicles in 10 seconds.

Rolled Over You managed 5 car rolls in a row from one crash.

Manhunt You completed the most wanted side mission.

Blade Runner - 75 kills with the knife Kill 75 Helghast using the knife

Babysitter - Revive 25 Buddies Revive your buddies a total of 25 times

Finish Him You completed 10 melee counters in 4 minutes.

Liberty City (5) Your friends all like you above 90%.

Top Of The Food Chain You successfully killed 20 players with a pistol in a deathmatch.

Join The Midnight Club You won a multiplayer race without damaging your vehicle too much.

You Got The Message You delivered all 30 cars ordered through text message.

No More Strangers You've met all the random characters.

Treadhead - Kill 30 Helghast whilst in the tank Take 30 Helghast lives whilst using the ISA tank

Undertaker - Kill 1000 Helghast Kill 1000 Helghast soldiers

Teamplayer You killed 5 opposing team members.

Genetically Superior You came first in 20 singleplayer street races.

TLAD: Easy Rider Finish the story. (The Lost and Damned)

Professional - 3 revolver headshots in a row Get 3 headshots in a row using the same clip of M4 Revolver ammunition

Mechspert - Stomp 10 Helghast Stomp 10 Helghast with your Exoskeleton in Maelstra Barrens

Spare Parts - Destroy all Leech Pods Destroy all Leech Pods in The Cruiser

TBoGT: Diamonds Forever Complete the Trinity. (The Ballad of Gay Tony)