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ExtraOps-United

A new type of Extra Ops introduced in December 2017, United Front-style Extra Ops function extremely similar to the Crank Key Extra Ops as well as having a cooperation mode similar to Metal Slug Defense's co-op mode.

During United Fronts, three dailies are available - successfully complete Solo, PT and United modes 3 times. Completion of these dailies yields 1000 MSA currency United Coins.

Modes[]

There are three modes available - Solo, PT and United Battle.

Solo[]

The easiest of the three modes, Solo mode allows the player to attempt the Extra Ops by themselves. It uses the least amount of sorties, but also gives a poor sortie:coin ratio. Unlike the other two modes, solo can be raided to quickly amass coins, although the poor results of raiding means that units and items acquired this way are significantly more expensive than they should have been.

There are three difficulties players can select; Very Easy, Normal and Very Hard.

Difficulty Enemy Strength
MSA difficulty 1-Very Easy
MSA difficulty 3-Normal
MSA difficulty 5-Very Hard

Solo mode follows the same format as with all other Extra Ops - defeat means the player can spend 30 medals to reattempt the stage, though it is not recommended to do so. Leaving the level upon being defeated yields reduced coins.

Very Easy mode provides 120 coins, Normal 240, and Very Hard 360 coins without any additional bonuses.

Point[]

This mode is slightly harder than Solo, but offers the most points at the cost of most sorties. Players cooperate with others in real time to defeat the enemy in a set amount of time. If a partner cannot be found within 45 seconds, then the player can select the CPU-cooperative to have the AI use the deck instead. A minimum level of 10 is required in order to play PT mode, with hard and hell difficulties requiring a minimum of level 30 and 50 respectively in order to access.

Difficulty Enemy Strength
MSA difficulty 2-Easy
MSA difficulty 4-Hard
MSA difficulty 6-Hell

As of the 3.11.0 update, players may rematch with their partners up to five times. With friends, the first rematch is free, but the remaining tries will require sorties from both players. If one player leaves, no further rematches can be done for the day even if the limit has not been reached.

Easy mode provides 240 coins, Very Hard 480, and Hell 960 coins upon completion (not including any experts in the player's deck).

If the team loses the Point battle, then the amount of coins obtained is greatly reduced.

United Battle[]

This mode is considered the hardest out of the three as the enemy draws other players' decks as the current matchup, which can be easier or harder than what Solo and PT difficulties provide. In addition, a mobile satellite is placed near the enemy base that periodically shoots four bolts that deal roughly ~30,000 damage each at enemies in range. Originally this satellite could destroy the player base, but this was eventually amended following numerous complaints.

As of the 3.11.0 update, players may rematch with their partners up to five times. With friends, the first rematch is free, but the remaining tries will require sorties from both players. If one player leaves, no further rematches can be done for the day even if the limit has not been reached.

If the team loses the United Battle, then the players automatically get a "D" rank as their coin bonus - the original amount of points remains unaffected. Unlike the previous two modes where the points are always the same regardless of how long the event lasts, United Battle either offers a varying amount of United Coins depending on the event's duration.

United Battle offers 650 or 750 coins respectively upon completion (not including any experts in the player's deck), depending on the duration of the United Front; 6-day events give 750 coins, while 7-day events give 650.

United Coins/Shop[]

MSA currency United Coins

United Coins are used to buy various rewards through the United Shop, such as unit parts, items, MSP, medals, and new avatar icons. Any coins that remain unspent after the event ends are automatically converted to MSP through the mailbox, at a 1:200 ratio (the same as purchasing it through the United Shop manually).

United Front Extra Ops boasts several golden-colored bosses and rare units, each of them having their own unique unorthodox abilities which allow them to effectively fulfill their roles in battle.

The shop is also the only source of Ultimate Device Bombs and Swords, the former being used for skill 2 items for an Ultimate Boss and the latter for skill 5 items.

Rewards[]

Each mode - Solo, PT and UB all share the same reward table. With each victory (or defeat in UB) in each mode provides "points" that are grouped together to unlock rewards from the reward table. The difficulty determines how much of these points are provided upon victory:

United Front Solo Attack Party Attack United Battle
MSA difficulty 1-Very Easy MSA difficulty 3-Normal MSA difficulty 5-Very Hard MSA difficulty 2-Easy MSA difficulty 4-Hard MSA difficulty 6-Hell N/A
1 - 29 1 2 3 2 4 8 5
30 - 39 4 8 12 8 16 32 20
40 5 10 15 15 30 60 35

As more stars are accumulated by participants, further rewards are unlocked. Rewards from the table include Mystery Crank Keys, various currencies (including United Coins) and at the end of each table are 500 medals to claim. This means up to six Mystery Crank Keys and 1,500 Medals can be obtained at 3,000,000 points and 3,500,000 points respectively. However, in 7 day United Front Ops, the amount of points required to obtain the medal reward is increased to 3,750,000.

Used Shop[]

As of the 3.15.0 update (United Front X), players may spend their accumulated United Coins in the Used Shop. This shop sells units and their related items, and stocks all merchandise up until the two most recent United Front Ops. The Used Shop works similarly to the Rare and Extra Shops.

Typically it is not recommended to spend on this shop unless the player shows interest in the old units, given their lack of usefulness in catching up with the current trends. Both the silver and gold-framed Super Rare units cost significantly more, where as a platinum, fully equipped Rare unit (assuming one starts from scratch) only costs slightly higher compared to their first release. These units are also put into the Mars Shop later on.

The Used Shop offers the following:

  • x1 Unit Part (Rare) - 600 MSA currency United Coins
  • x1 Unit Part (Super Rare) - 4000 MSA currency United Coins
  • Silver Item (Rare) - 750 MSA currency United Coins
  • Silver Item (Super Rare) - 3000 MSA currency United Coins
  • Gold Item (Rare) - 1500 MSA currency United Coins
  • Gold Item (Super Rare) - 6000 MSA currency United Coins
  • Platinum Item (Rare Skill 4 Item) - 2250
  • Platinum Item (Rare Skill 5 Item) 3000 MSA currency United Coins
  • Platinum Item (Super Rare Skill 4 Item) - 12000 MSA currency United Coins
  • Platinum Item (Super Rare Skill 5 Item) - 18000 MSA currency United Coins

List of Ops[]

All Extra Ops of this type
Extra Ops Version Rare Prize Main Prize
United Front I 2.18.0
United Front II 2.20.1
United Front III 3.0.0
United Front IV 3.2.0
United Front V 3.4.0
MSAUnitBronze
MSAUnit Mini U.F.O(Ver.Gold)
    
United Front VI 3.6.1
United Front VII 3.8.0
United Front VIII 3.11.0
MSAUnitBronze
MSAUnit Golden Bradley
    
United Front IX 3.12.0
United Front X 3.15.0
MSAUnitBronze
MSAUnit Golden Elite Hover Unit
    
United Front XI 3.17.0
United Front XII 3.19.0
United Front XIII 3.21.0
United Front XIV 3.23.0
MSAUnitBronze
MSAUnit Golden Hound
    
MSAUnitSilver
MSAUnit Golden Union 03 Ver.P.M
    
United Front XV 4.0.0
United Front XVI 4.3.0
MSAUnitSilver
MSAUnit Golden Mars Mecha
    
United Front XVII 4.4.0
United Front XVIII 4.6.0
MSAUnitBronze
MSAUnit Golden Gunner Unit
    
MSAUnitSilver
MSAUnit Golden Metal Rear EX
    
United Front XIX 4.8.0
MSAUnitBronze
MSAUnit Hazmat Soldier(Gold)
    
United Front XX 4.10.0
United Front XXI 4.12.0
MSAUnitSilver
MSAUnit Golden Rebel Gigant(P.M)
    
United Front XXII 4.14.0
United Front XXIII 4.16.0
MSAUnitBronze
MSAUnit Golden Drill Slug
    
MSAUnitSilver
MSAUnit Golden Ball Slug
    
United Front XXIV 4.20.0
MSAUnitBronze
MSAUnit Golden Big Snail
    
United Front XXV 4.22.0
MSAUnitBronze
MSAUnit Golden Bat
    
United Front XXVI 5.0.0
MSAUnitBronze
MSAUnit Real Golden Hunter Walker
    
MSAUnitSilver
MSAUnit Golden Giant Hunter Walker
    
United Front XXVII 5.3.0
United Front XXVIII 5.6.0
United Front XXIX 5.8.0
MSAUnitBronze
MSAUnit Golden Dog Mummy
    
United Front XXX 5.13.0
MSAUnitBronze
MSAUnit Golden Protogunner
    
MSAUnitSilver
MSAUnit Golden Slug Square
    
United Front XXXI 5.15.0
United Front XXXII 5.19.0
MSAUnitBronze
MSAUnit Golden Saucer
    
United Front XXXIII 5.21.0
MSAUnitBronze
MSAUnit Golden Wall Drone
    
MSAUnitSilver
MSAUnit Golden Quadro Jumper
    
United Front XXXIV 6.2.0
MSAUnitBronze
MSAUnit Golden Self-Destruct Pod
    
MSAUnitSilver
MSAUnit Golden Cabrakan
    
United Front XXXV 6.5.0
MSAUnitBronze
MSAUnit Dangling Golden Ivy
    
MSAUnitSilver
MSAUnit Golden Cyclo
    
United Front XXXVI 6.7.0
MSAUnitBronze
MSAUnit Golden Regular Army Di-Cokka
    
MSAUnitSilver
MSAUnit Golden Slug Defender
    
United Front XXXVII 6.11.0
MSAUnitBronze
MSAUnit Tar Man Gold
    
MSAUnitSilver
MSAUnit Golden Monoeye UFO
    
United Front XXXVIII 6.15.1
MSAUnitBronze
MSAUnit Golden Samurai Tanks
    
MSAUnitSilver
MSAUnit Golden Crusty Legs
    
United Front XXXIX 6.17.0
MSAUnitBronze
MSAUnit Golden Utan
    
MSAUnitSilver
MSAUnit Golden Knight Tank
    
United Front XXXX 6.19.0
United Front XXXXI 7.0.3
MSAUnitBronze
MSAUnit Golden NOP-03 Sarubia Ver. P.M
    
MSAUnitSilver
MSAUnit ShootingRay Ver.Gold
    
United Front XXXXII 7.3.0
MSAUnitBronze
MSAUnit Walk Machine Type-G
    
MSAUnitSilver
MSAUnit Golden Trolley
    
United Front XXXXIII 7.6.0
MSAUnitBronze
MSAUnit Smasher(Type-G)
    
MSAUnitSilver
MSAUnit Vanguard(Type-G)
    
United Front XXXXIV 7.10.0
MSAUnitBronze
MSAUnit Golden Flying Tara Ver. P.M
    
MSAUnitSilver
MSAUnit Golden Augensterm Ver. P.M
    

Notes[]

MSAlogo
Extra Opsv t e
Mars Attack Jupiter King's Extra Ops Mummy's Score Attack!! Ptolemaic Attack Pirates Attack Golden Soldier Black Future CODE : ASSAULT The King of Weapons
Metal Slug Alice Zombie Parade Alien vs. Morden Boy Memories Sand Locker Halloween Train Agent Sally Mutation War Food Army! Destroy the Tower
Invader Girl Operation Ikari Santa Trap Merry Christmas! Queen's Battle Flying Ace Crazy Drive!! Food Army! 2nd X Day Pharaoh Rebirth
Chocolate of the Dead Signal Red Power of New Versions Signs of Curse Tough & Cool Wild Edge Pirate's Ghost Amadeus Revenge Snatch Wars Jungle Monkeys
Rider's High Green Monster Mad Scientists Snatch Wars Season 2 Break In The Shell Maximum Evolution Next One Snatch Wars Season 3 Clash of the Worlds Bicycle Maiden
Glow in the Dark Snatch Wars Season 4 Double Face Last Resort No Limit Rising Iron Snatch Wars Season 5 Silent Assassin Supply Lines Eternal Way
Snatch Wars Season 6 Dancing Brave Blood Runaway Royal Identity Cross Over Fate Snatch Wars Season 7 White Breath Out of Control Same Direction Snatch Wars Season 8
Time Collision Fall of Disaster United Front Snatch Wars Season 9 Sadistic Emotion Top Prospect Snatch Wars Season 10 United Front the 2nd Revival of Intention Hero of Justice
Snatch Wars Season 11 Kung Fu Guru United Front the 3rd Butterfly Disaster Advance of Fire Beast Power United Front the 4th Protection of the Fortress Fist Invasion Fire Inhibition
United Front the 5th Best Partner One Mind First Rebellion United Front the 6th Growing Ninja Encounter of Unknown Try Line 1st United Front the 7th Hot Trap
Sky King Theory of Evolution Try Line 2nd Dark Invitation United Front the 8th Tropical Battles Strange Town Auto Battle United Front the 9th Begin Training
Try Line 3rd Destruction and Regeneration Unknown Snow United Front the 10th Sword of Allegiance Try Line 4th Code of Conduct United Front the 11th Escape Plan Try Line 5th
Great Flower United Front the 12th Christmas Wishes Daughter of the Dusk Ace United Front the 13th OneMan Army Try Line 6th The Successor United Front the 14th
Bloom Disaster Guardians of Morden United Front the 15th Killer Scythe Try Line 7th On the Bad Road Pain of My Heart United Front the 16th Memories of Mirage Try Line 8th
Material Affection United Front the 17th Tiny Super Girl Like a Bird Ancient Code United Front the 18th Mad Assault Crew Try Line 9th The Divine Move United Front the 19th
Shinobi Hunter Task Force 1st ACE in ADVERSITY United Front the 20th Freestyle Try Line 10th Under City United Front the 21st Punk! Punk! Punk! Task Force 2nd
Mars Sweeper United Front the 22nd Scary Halloween Party Try Line 11th Task Force 3rd Four Samurai United Front the 23rd Gluttony of Disaster Task Force 4th From Me to You
Try Line 12th Return of Hope United Front the 24th Secret In My Eyes Task Force 5th The Moth Try Line 13th Beautiful Fighter United Front the 25th White Combat
Task Force 6th Silent Evolution United Front the 26th Returning Task Force 4th Jumper Try Line 14th Insanity Ahead Task Force 7th Absolute Defender United Front the 27th
Lunatic Providence Try Line 15th Blue Fire Task Force 8th All Creation United Front the 28th The Executioner Try Line 16th United Front the 29th Freedom
Guardian of the City Justice of Summer Task Force 9th If/The Beginning Portless Communication Lonely Mate Try Line 17th United Front the 30th Girls be Ambitious Task Force 10th
Halloween Forest Try Line 18th United Front the 31st Space War Task Force 11th Perfect Doctor Blue Christmas Pirate Christmas Try Line 19th 2021 New War!!
United Front the 32nd Task Force 12th Sand Rabbit Try Line 20th Because of Love United Front the 33rd Re:Merge Scrap Brain Try Line 21st Omen
Shakety Empty United Front the 34th Stray Ghost Task Force 13th One Cut Try Line 22nd Accidental Coincidence United Front the 35th Freedom Mission Task Force 14th
Burning Diamond United Front the 36th Task Force 15th Ugly Friend Try Line 23rd Road to Everlasting Summer My Beach Task Force 16th Gray Tiger United Front the 37th
Cat Alyst Search & Destroy 1st Deep Water Task Force 17th Sand Dance Trick or Treat Search & Destroy 2nd United Front the 38th My Little Forest Task Force 18th
Dark Mirror United Front the 39th Silence Snow Task Force 19th Great Fortune United Front the 40th Resurrecting the Giant Search & Destroy 3rd Brain Evolution Chocolate Race
Task Force 20th Last Ambition United Front the 41st Horrible Devil Search & Destroy 4th Easter Courage Task Force 21st United Front the 42nd Genius or Fool Search & Destroy 5th
The Red Strangers Double K Runaway Bacteria Task Force 22nd Lost Memories United Front the 43rd Runaway Blood Task Force 23rd Ominous Art Muscle Ball
Task Force 24th Flat Nose Soldier United Front the 44th Space Monster Task Force 25th Earth Dimension Fly to The Future Protective Chain Task Force 26th
MSAlogo
Navigationv t e
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Extras Patch Notes | Music | Update History | Event Schedule
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