Extra Ops

Extra Ops

List of Extra Ops

˅˃ Ops Types (Defunct)

Score Attack

Daily

Crank Key

Snatch Wars

The first, Martian-themed event.

Extra Ops are event-oriented modes with cooperative elements in Metal Slug Attack, first introduced in 1.4.0. The player is presented with stages that cost Sortie Points to play and give MSP, Unit Parts, and unique Event Items as drops, while also generating Exclusive Points.

Each event typically introduces new Units. With the exception of Snatch Wars, each Extra Ops has short skits at their beginnings and ends.

Extra Ops types

The Extra Ops have a variety of types, each with unique features. Some appear regularly, and some have been entirely superseded by other types - for example, Score Attack Extra Ops were replaced by Snatch Wars Extra Ops, which were in turn replaced by Try Line Extra Ops, and so on. The very first type of event to appear in the game, Marathon Extra Ops, still often appears as the first for each month.

The Ops types also determines the nature of the equippable Event Items used by introduced units. Marathon and Rare Boss EOs have non-craftable silver items. This means the items are only available through that EO until it is released on Another Story. Ranked EOs and United Front EOs (both normal and daily) have craftable silver items, meaning that even after their EO is over, the exclusive items can still be created with normal items, but will take longer than usual to complete.

Active Ops

A selection of four or five of these event types can be played most months.

	Extra Ops	Style	Description
	Marathon	Single-player	Players work their way across multiple maps, covering three different difficulty levels.
	Rare Boss	Single-player	A "rare boss" randomly appears as players beat stages, granting access to special unit parts.
	Task Force	Single-Player	A task-based event where players must build a themed deck in order to bolster their bonuses while facing numerous challenges and negative status effects inflicted against their units.
	Recapture	Single-Player	Players must work their way accross multiple maps while collecting coins and items to trade for unit parts, items, and medals.
	Search & Destroy	Guild Ops	Coins are gained as guilds work their way towards the center of the map. Prizes are purchased from the Guild Ops Shop.
	United Front	Co-operative	Players fight together to gain coins. Prizes are purchased from the United Shop Total Rewards are given depending on the entire playerbase's cooperation.

Defunct Ops

Although playable in past times, ops of these types no longer appear within current event rotations.

	Extra Ops	Style	Description
	Score Attack	Competitive	The final enemy gains power the more times it is beaten. At the end of the event, boss parts are awarded to the highest-scoring players.
	Daily Ranked	Competitive	Prizes are awarded to the highest-scoring players at the end of each day.
	Snatch Wars	Guild Ops	Guilds fight for control of the map. Boss parts are awarded to the groups holding the largest areas at the end of each day.
	Crank Key	Co-operative	Players work to defeat enemies, acquiring crank keys, medals, and avatar icons as their combined kill counts grow higher.
	Try Line	Guild Ops	Coins are gained as guilds work their way towards the center of the map. Prizes are purchased from the Try Line Shop.

Exclusive Points

Exclusive Points are a currency exclusive to this mode, however they cannot be spent directly and reset at the end of each event. Instead they are used as a unit of measure, rewarding the player for reaching specific milestones. EPs are generated depending on mission outcomes, as well as Completion Rank, and are further influenced by presence of Expert Units in the active deck and use of Reward Up ^{(percentages affect the base values of EP rewards for any given stage)}. Expert Units can be set up at the Soldier Camp for guild mates to use (bonuses from duplicate units stack) - each unit can only be hired once a day from other players.

The icon representing EP changes depending on the event, though it retains its distinctive silver disc appearance.

Expert Units

Certain units are flagged as "experts" during each event, and add extra Exclusive Points at the end of each mission. These flash while building your deck, making them easy to spot.

Exactly which units are experts depends on the current event. Typically the selection includes:

• Current Super Rare pre-acquisition / box / step unit (highest bonuses)
• Current Rare pre-acquisition unit / Pack Shop (second highest bonuses)
• Last month's Super Rare and/or Rare pre-acquisition unit (slightly lower bonus)
• Previous Extra Ops boss (lower bonuses)
• Various units, typically a max of 3 (lowest bonuses) - usually, the Rare unit that can be unlocked in the EO is one of these expert units.

Pressing the Expert button in the Extra Ops menu displays icons next to the current set of experts:

	Increases points gained per victory by X%.
	Unit has increased power and costs less AP to deploy. Best experts have higher AP reduction.
	(Daily Ranked only) - Increases the chance of golden enemies appearing each stage.
	(Snatch Wars / Try Line / Search & Destroy only) Increases the damage of all units in that deck.
	(Score Attack only) - Soldier moves further with each victory (bosses may be fought more often).
	(Rare Boss / Recapture only) - Increases the chance of the Rare Boss' appearance rate.