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United Front the 43rd is the two hundred and eighty-sixth Extra Ops introduced in Metal Slug Attack.

Story[]

Harriot returns to Earth to observe an Invader operation, with the attack force also consisting of golden Vanguards and Smashers. She sends a letter to Dion.

At the Rebel facility, Dion receives the letter from Harriot, where she is waiting to observe the strength of the rumored Super Devil that resides in the Regular Army.

At the Regular facility, many soldiers can be seen fawning over Fio, who's been possessed by the Super Devil, although unlike the original, she still retains her normal skin color, although with a military uniform of some sort. The Super Devil is irritated by the unnecessary praise when Howell, observing the unnecessary ruckus, injects the soldiers with a serum to knock them out. Fio then returns to normal, but with no recollection of what just happened, getting Howell's interest.

The two head to the battlefield where the soldiers there begin fawning over Fio, much to her confusion. The Super Devil then possesses her again and orders the troops to prepare for battle.

After the battle, the soldiers begin to praise Fio for her skills. Harriot is still observing when Howell catches her by surprise, so she feigns affection towards Fio, much to his bewilderment. The Super Devil accepts Harriot into her group. They head towards the shop, where the three devote their coins to her; Howell, quite sick of the atmosphere, knocks all the soldiers out with his gas, much to the Super Devil's irritation. Before it could act, Fio returns back to normal as Harriot continues praising her, unaware of the change. Howell leaves to write a complaint while a golden monkey hits Harriot with a banana. Taking the banana, she finds a letter from Dion asking if she wants a formal dismissal, prompting her to leave. Fio, unaware of what happened, believes that she's a genius with all the events revolving around her.

Introduced Units[]

Units Faction Rarity 
 Blue Lightning Super Devil Fio  
    
 Special Howell
 
    
 Vanguard(Type-G)
 
    
 Smasher(Type-G)

Expert Units[]

Expert
Units
Get Unit
Step Up
Crank

 60%  120%  200% 
    
Pre-Acquisition
 30%  45%  60%  75% 
    
Pick Up!!
 15%  20%  25%  30% 
    
Extra Ops
(Previous)

 10%  15%  20% 
    
United Shop
 6%  9%  12%  15% 

 2%  3%  4%  5%  6%

Stages[]

All stages have a one time bonus of 30 medals when completed.

Solo Attack[]

Difficulty Enemies
    
    
    
    
10 100
    
    
    
    
    
    
20 220
    
    
    
    
    
    
30 360

Party Attack[]

Difficulty Enemies
    
    
    
    
    
    
20 200
    
    
    
    
    
    
40 440
    
    
    
    
    
    
80 960

United Battle[]

Difficulty Enemies
N/A Random (other players' deck x2) 50 650

Shop[]

Apart from the MSP, each purchase is one-time only.

Daily Update[]

Each stock can only be bought once a day, resetting at 12:00 JTC.

Items
500
1,000
2,000

Vanguard(Type-G)[]

Items   Quantity
    
40,000 1
    
150,000 1
    
600,000 1
VANGUARD CORE(TYPE-G)
18,000 3
VANGUARD RAY GUN(TYPE-G)
12,000 3
VANGUARD LOTUS(TYPE-G)
6,000 3
VANGUARD ARMOR(TYPE-G)
3,000 3

Smasher(Type-G)[]

Items   Quantity
    
15,000 1
    
30,000 1
    
60,000 1
    
90,000 1
Smasher Eye(TYPE-G)
3,000 3
Smasher Limb(TYPE-G)
2,250 3
Smasher Abdomen(TYPE-G)
1,500 3
Smasher Outer Shell(TYPE-G)
750 3

 

Ultimate Items

Items   Quantity
Ultimate Sword
40,000 3
Ultimate Device Bomb
15,000 3

Avatar Icon[]

Items
Vanguard (Type-G) 7,500
Smasher (Type-G) 7,500
Odette Avatar 7,500
Schwarz Metzelei (Awakening) and Nowan 7,500

Miscellaneous Items[]

Items   Quantity
7,500 4
Radar
800 3
APLvMax
1,500 3
Reward Up
2,000 3
Mobile Satellite
400 3
Pants
1,500 3

Limitless[]

Unlimited amounts of MSP can be bought from the shop at any time during the duration of the event.

Items
10,000 50
100,000 500
1,000,000 5,000
10,000,000 50,000

Milestones[]

Solo Attack - Party Attack - United Battle

Points Rewards Total Rewards
3,000
1,000
15,000 100,000 100,000 1,000
30,000
100,000 1,000 500
60,000 200,000 300,000 1,000 500
90,000
300,000 1,000 500 500
150,000 300,000 600,000 1,000 500 500
300,000
600,000 1,000 500 500 500
600,000 400,000 1M 1,000 500 500 500
900,000
1M 2,000 500 500 500
1.2M 500,000 1.5M 2,000 500 500 500
1.5M
1.5M 2,000 1,000 500 500
1.8M 600,000 2.1M 2,000 1,000 500 500
2.1M
2.1M 2,000 1,000 1,000 500
2.4M 700,000 2.8M 2,000 1,000 1,000 500
2.7M
2.8M 2,000 1,000 1,000 1,000
3M 800,000 3.6M 2,000 1,000 1,000 1,000
3.3M
3.6M 3,500 1,000 1,000 1,000
3.6M 900,000 4.5M 3,500 1,000 1,000 1,000
3.9M
4.5M 3,500 1,500 1,000 1,000
4.2M 1M 5.5M 3,500 1,500 1,000 1,000
4.5M
5.5M 3,500 1,500 1,000 1,000 1
4.8M
5.5M 3,500 1,500 1,500 1,000 1
5.1M 1.1M 6.6M 3,500 1,500 1,500 1,000 1
5.4M
6.6M 3,500 1,500 1,500 1,500 1
5.7M 1.2M 7.8M 3,500 1,500 1,500 1,500 1
6M
7.8M 5,000 1,500 1,500 1,500 1
6.3M 1.3M 9.1M 5,000 1,500 1,500 1,500 1
6.6M
9.1M 5,000 2,000 1,500 1,500 1
6.9M 1.4M 10.5M 5,000 2,000 1,500 1,500 1
7.2M
10.5M 5,000 2,000 2,000 1,500 1
7.5M 1.5M 12M 5,000 2,000 2,000 1,500 1
8M
12M 5,000 2,000 2,000 2,000 1
8.5M
12M 5,000 2,000 2,000 2,000 2
9M
12M 7,000 2,000 2,000 2,000 2
10M
12M 500 7,000 2,000 2,000 2,000 2
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
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