Marvel Avengers Alliance Spec Ops 14 - The Dark World

Another new SPEC OPS for Playdom's MARVEL AVENGERS ALLIANCE this time focusing on the film THOR: THE DARK WORLD. 

Two great things about this is that first the character players get to unlock is Stacker Pentecost himself, Heimdall or the MCU version at least played by Idris Elba. The collection-based character is the Tom Hiddleston Loki.

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Dark Times
HINT: Aid the Asgardians by defeating Dark Elves. Dark Elves can be found in Mission 1: Our Darkest Day
Defeat 10 Dark Elves

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To Arms!
HINT: Leaping Slash is Sif's second ability. Dragonfang is Valkyrie's second ability. They are Team-Ups in Spec Op 14 Mission 1: Our Darkest Day
Use Sif’s Leaping Slash 4 Times
Use Valkyrie’s Dragonfang 4 Times

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Thunderer
HINT: Hammer Throw is Thor's first ability. Thor is a Team-Up in Spec Op 14 Mission 1: Our Darkest Day
Use Thor’s Hammer Throw 5 Times

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Weapon of the Ancients
HINT: Destroyer is the Boss of Mission 1: Our Darkest Day
Defeat the Destroyer

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Behemoth
HINT: Fight Kurse either on your own map or on your friends' maps for free. Kurse respawns every 72 hours.
Complete a Battle with Kurse

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Face Off
HINT: Research the Dark Elf Mask to complete this task.
Research the Dark Elf Mask in the Lab

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Unmasked
HINT: Equip and Use 5 Dark Elf Masks to break the illusions of 5 Dark Elves. Dark Elves can be found in Mission 1: Our Darkest Day
Use 5 Dark Elf Masks to break the illusions used by 5 Dark Elves

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Versus
HINT: Compete in PVP to test your skills against other players. Hint: Practice matches count as battles.
Fight 5 PVP Battles

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A Giant Problem
HINT: Jotuns can be found in Mission 2: Guiding Light
Defeat 10 Jotuns

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Mission Accomplished
HINT: Complete missions to add points to your cumulative score. Achieve a high enough score to earn a new Mastery Star!
Get 2 Stars of Mastery in Mission 1

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Gone Clubbing
HINT: Research the Stone Golem Club to complete this task.
Create the Stone Golem Club in the Lab

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Blunt Instrument
HINT: Equip and use the Stone Mace
Equip the Stone Golem Club
Use the Stone Golem Club in Combat

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Sight Beyond Sight
HINT: Heimdall is a Team-Up in Missions 2 and 3
Use Heimdall’s Vigilance 2 times
Use Heimdall’s Uru Blade 3 times
Use Heimdall’s Gjallarhorn 2 times

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Son of Secrets
HINT: Collect lockboxes to unlock Loki as a playable hero. They can be earned from fighting Kurse or lockbox sidequests.
Collect 5 Mischievous Lockboxes

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Some Enchanted Evening
HINT: Enchantress is the Boss of Mission 2: Guiding Light
Defeat Enchantress
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Lab Practical
HINT: Research the Eclipse to complete this task.
Create the Eclipse in the Lab

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Dark Side of the Moon
HINT: Equip and use the Eclipse
Equip the Eclipse
Use the Eclipse in Combat

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Mission Accomplished
HINT: Complete missions to add points to your cumulative score. Achieve a high enough score to earn a new Mastery Star!
Get 2 Stars of Mastery in Mission 2

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Hoarder
HINT: Unstable Isotope-8 can be found in normal combat, as well as rewards from deploys and boss fights. You can also get some from your friends!
Collect 20 Unstable Iso-8

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Trickster
HINT: Fog of Chaos is Loki's second ability. Loki is a Team-Up in Missions 2 and 3
Use Loki's Fog of Chaos 2 Times

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Grim Strength
HINT: Fight Kurse either on your own map or on your friends' maps for free. Kurse respawns every 72 hours.
Fight Kurse 3 Times

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Field Trip
HINT: Yellow portals to Svartalfheim can be found in Mission 3: A Fool's Redemption
Complete 4 Combats in Svartalfheim

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The Accursed
HINT: Malekith is the Boss of Mission 3: A Fool's Redemption
Defeat Malekith

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Mission Accomplished
HINT: Complete missions to add points to your cumulative score. Achieve a high enough score to earn a new Mastery Star!
Complete 3 Stars of Mastery in all Spec Op 14 Missions

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Darkness Falls
HINT: Malekith is an Epic Boss in Mission 2: Guiding Light. HINT: Participate in Deploys as soon as they appear.
Defeat Malekith

Noteworthy here are the required characters needed to unlock the EPIC BOSS:

She-Hulk, Mockingbird and Valkyrie.