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Help From My Friends Get at least a Bronze medal on 10 different co-op challenges.

Zombiepult In Gorod Krovi, launch 10 zombies into the air at the same time.

The Greatest Cape Stay airborne with the Hero Cape for 15 seconds.

Prestigious Award Attain max level or Prestige with 25 different weapons in Zombies

Valley Blue clear Complete all Blue Valley maps (Any medal)

For The Good Of All In Revelations, the Key must be opened.

Drop The Bald Defeat Lex Luthor.

It belongs in a museum! Bring an artifact back to the museum.

Ground Control In Moon, prevent each excavator from breaching the base in one game.

Catenaccio Vaporized Beat Italy in the Junior Youth World Challenge.

Jaxxed Have 50 or more Strength during combat.

Little Lost Girl In Origins, release Samantha.

Chasing the Game Lured and killed an alpha wyvern near Chateau Haine. ("Mark of the Assassin" downloadable content)

On A Roll Complete Fast Food without losing a ball

Challenge Domination Get a Gold medal on all single-player challenges.

Bada Boom Kill 50 aliens with explosive weapons.

Positive word of mouth Earn your first RP rank up.

Cu later Complete "Copper World"

Preemptive Strike In Classified, kill 50 Nova 6 Crawlers without letting them explode in a single game

Blackout Historian In Blackout, unlock Reznov, Mason, Woods and Menendez

"Puny God!" Defeat an enemy

Powerful Have 10 or more buffs during combat.

Crawl for Help In Classified, while in last stand use a teleporter and then get revived in a single game

A Better Tomorrow In Revelations,complete the cycle.

Bells and Whistles Have 4 weapon mods on a single weapon.

Senseless Axe of Violence In Blood of the Dead, kill 5 zombies with the Hell's Redeemer before it starts its return

Pent-up-agon In Classified, complete 5 consecutive rounds without leaving the war room elevator in a single game

Surpassing Admiration Beat the Netherlands in the Junior Youth World Challenge.

What's Important in Soccer Beat Senegal in the Junior Youth World Challenge.

New Recruit Unlock your first hero

The Take Disarmed the fire traps in Chateau Haine's vaults. ("Mark of the Assassin" downloadable content)

Know-All Obtain all trophies

Prodigy vs Prodigy Beat Argentina in the Junior Youth World Challenge.

Great Month! Win the Manager of the Month award in Career Mode

Purity Have 3 or fewer cards in hand, draw, and discard pile combined.

Square peg in a round hole Attempt to use an improvised battery in "Copper World"

Love And War In Gorod Krovi, the one must be freed.

Got There Complete all "Hard" Get-Theres.

Trail of Destruction Destroy 100 ARC enemies.
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Pride of the Fatherland Beat France in the Junior Youth World Challenge.

Cavernous Stumble Complete Hagar Caves in The Scorchers job path

A Vendetta Is Born Get downed and knocked out while inside a return point.

Aced Story Mode Ace the main path of the Story.

Flight of the Valkyries Win a mission with an all-female squad. Single player only.

Loose change Throw all four hidden coins off the level in "Copper World"

Get A Life Spend 1440 active minutes in Create mode.

Meet New People. Then Kill Them. Win a multiplayer match.

Angel of Death Kill an alien while flying. Single player only.

More Help From My Friends Get at least a Bronze medal on all co-op challenges.

Even More Help From My Friends Get a Gold medal on all co-op challenges.