Ero-Sam

For Close Encounters Get 10 one-hit head-shot kills with the shotgun in the single player Campaign.

Master Mechanic Fully upgrade all weapons in Campaign Mode

Hell-Burbia Completed the larger challenge in the Hell-Burbia coliseum

Toast Use the upgraded Deadeye secondary fire to kill 2+ enemies, 5 times

Solid Gold, Baby! Earn any 70 Gold Medals on Missions, Strangers and Freaks.

Made it Out Alive Escape 1st time in Regular or Hardcore difficulty.

Danger Zone Buy all items from the Survival Air Support Armory.

Eat This! Kill a bug warrior with a shotgun within 1 meter.

Electric Avenue Use the EMP to take down 25 drones

Sandman Kill 5 Grims in a row with only headshots

They Go "Boom" Get 30 kills with the Magnum secondary fire in the single player Campaign.

The Angelic Ruins Completed the larger challenge in The Angelic Ruins coliseum

Access Denied Absorb 1000 damage with Auger Shields

Hot Potato! Throw back a live grenade.

The Right Direction Win your first B-Spec event race.

Arms Dealer Buy all items from the Survival Weapon Armory.

Get some! Fire at least 150 rounds in one burst, killing at least 10 enemies.

Backstabber Kill 20 enemies with melée while they are idle

Big Tournament Completed each of the larger challenges in all 3 coliseums

Explosives Expert Get 150 kills with the Carbine 40mm, LAARK, or frag grenade in the single player Campaign.

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

Run the Gauntlet Complete "Desperate Escape" on Professional.

It Takes Two to Tango Chain a 40-defeated combo in Team Slayers.

Paint Splurge Fire 5,000 paintballs

Throw a Six and a Half On Hardened or Veteran difficulty, complete a level without dying. (Solo only)

The taller they are... Defeat a Bile Titan.

Sprinter Reach the exfil chopper with 1:30 remaining on the clock in Regular or Hardcore difficulty.

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

Spitting Lead Kill 50 enemies using the Wraith with the force barrier engaged in the single player Campaign.

Army of One Win 15 matches in Slayers.

Overachiever Earn 48 stars in Special Ops Mission Mode.

Bouncer Keep Chimeran forces from entering the Brewpub

Majestic Create and export 10 videos using the Rockstar Editor or enter Director Mode 10 times.

No Man Left Escape with all four players in Regular or Hardcore difficulty.

Archivalist Collect all journals

Rexecutioner Destroy the Metal Gear REX boss

Gunslinger Assassinate General Amsel with a pistol shot. (Solo only)

Corpse Wagon Detonate fallen Leeches to kill 25 enemies

Old-Timer Acquire a car manufactured in 1959 or earlier.

Iron Fist Destroy all towers and bunkers in 'Blood and Iron'.

Eye of the Tiger Win 15 matches in Survivors.

Good Fences Don't allow any counter-attackers into the Washington Square base

For the greater good! Kill 5,000 enemies.

Juggler Simultaneously burn, freeze and poison 4 separate enemies

Grave Robber Collect all Death Cards in the game. (Solo only)

All In Earn all available Trophies for Modern Warfare® 3.

Patriot Play at least 50 missions.

QuickFire Artiste Fire 40 paintballs in under 5 seconds

The Team That Slays Together... Win 15 matches in Team Slayers.

Science is done by quantity Extract with at least 15 common samples.