History Characters / ArmoredCoreVIMainCharacters

* BodyHorror: We don't get to see very much of 621 outside their AC, but what we do have makes it clear Human PLUS augmentation is every bit as [[MeatGrinderSurgery gruesome]] as it was implied to be in early entries in the series.

* BreakOutTheMuseumPiece: In Chapter 5, [[spoiler:621 is tasked to escape Arquebus by using an old-generation AC prepared by Handler Walter. The aptly named JAILBREAK AC is, to put it lightly, a walking ''junkheap'' of an Armored Core. Not only does it have poor Attitude and AP on top of piss-poor energy output, its only reliable weapon is its shoulder-mounted rocket launcher. Its so weak even the average MT can destroy it in a few seconds if you let it. Understandably, Ayre advises to avoid engaging in combat while in this AC as much as possible as you make your escape from Arquebus]].

* FlawedPrototype: Downplayed and implied. 621 is stated to be a fourth-generation augmented human, hence the "C4" in their designation. Some comments and the bios of other augmented characters imply old-gen augmentation surgery were dangerous to carry out[[note]]Sulla's Arena bio notes that first-gen augmentation surgery had a ''90% fatality rate''.[[/note]], but eventually became safer and with more benefits as seen with the Vespers. As a result, some look down on 621 for being an 'inferior' augmented human, with at least one independent merc saying they should be in a museum. Not that any of this stops 621 from kicking all kinds of mech ass throughout the game or killing 'superior' augmented humans [[spoiler:like V.II Snail]].

* IndenturedServitude: Handler Walter bought them from a [[BackAlleyDoctor dubious vendor]] into a form of this, with the arrangement (in theory) that 621 will work off their debt for Walter, and eventually earn enough money to repair the damage from the brutal human PLUS surgery.
* InformedAttribute: After [[spoiler:Ayre cuts contact with 621 in the "Fires of Raven" Route]] ''something'' changes with 621 to the point where both Rusty and "Cinder" Carla not only notice, but even have some idea as to what happened.

* MistakenIdentity: On at least two occasions, 621 is mistaken for someone else. The first is in Chapter 2 by an independent merc named Nosaac who attacks 621 thinking they're a debt collector for the bank for his failure to pay back banks for the credit loans he took out to buy his AC and had no intent to pay[[note]]as he's an OptionalBoss in the mission, you get a 40,000 credit bonus for defeating "Debt-Baron Nosaac", which is 10,000 more than the payment you get for defeating "Invincible" Rummy in the same mission.[[/note]], and the second is by [[spoiler:the PCA who accuse "Raven" for creating so much chaos on the planet for leaking intel, though in this instance it's justified since 621 is using Raven's license to operate on Rubicon 3. Unlike Nosaac, the PCA quickly realizes they have the wrong person when 621's capabilities do not match Raven's.]]
* MysteriousPast: All that's known about 621 prior to undergoing Human PLUS surgery is that they were an AC pilot.

* RecurringElement: C4-621 is all but stated to be a PLUS Human in the setting of ''Fires of Rubicon'', having undergone some sort of surgery that heavily increased their AC piloting capabilities, albeit at the cost of leaving them in horrendous debt. In a unique twist as the "C4" implies, 621 is a fourth-generation augmented human and is often seen as 'inferior' by other fellow augmented humans because of it, with Chartreuse in particular angrily yelling they should be in a museum instead of in an AC.

* LaterInstallmentWeirdness: Generally, Raven is what all AC using mercenaries are called in the Armored Core series. It's just the standard title for them. With ''6'', 621 picks up the callsign Raven from a low ranking mercenary who died and thus is the only mercenary that goes by "Raven" in the game, with every other merc having their own unique callsign.

* EmptyShell: It's stated Fourth Gen augmented humans are not only limited in emotion, but they lack any kind of direction until given a goal. It's only then that they start to become more "alive".

* AddictionPowered: Augmented humans up to fourth generation are apparently reliant on coral to function.

* BreakOutTheMuseumPiece: In Chapter 5, [[spoiler:621 is tasked to escape Arquebus by using an old-generation AC prepared by Handler Walter. The aptly named JAILBREAK AC is, to put it lightly, a walking ''garbage'' of an Armored Core. Not only does it have poor Attitude and AP on top of piss-poor energy output, its only reliable weapon is its shoulder-mounted rocket launcher. Its so weak even the average MT can destroy it in a few seconds if you let it. Understandably, Ayre advises to avoid engaging in combat while in this AC as much as possible as you make your escape from Arquebus]].

* NotSoStoic: He is consistently cool-headed with very little capable of shocking Walter out of his professional demeanor, [[spoiler:which is why it's all the more noteworthy when he's a lot more agitated than usual when dealing with [[SymbioticPossession potential Coral eruptions]], or showing [[OhCrap visible fear]] in his voice when ALLMIND's Armored Core barrels towards him and "Cinder" Carla in the "Alea Iacta Est" route.]] In certain missions from the mid-game point onwards, he'll also show what seems to be genuine shock if 621 dies. He is noticeably on edge during the fight with CEL 240 if 621 is losing or dies, as it is the last hurdle before his goal.

* PetTheDog: He doesn't show it very much, but once 621 proves an invaluable asset, he starts treating them with more respect and gets annoyed and angry when others belittle them, especially the corporations who use 621 for their own ends. For instance, in Chapter 3 both Balam and Arquebus hire 621 to assist in destroying [[spoiler:PCA operations]], and both treat the whole affair as some sort of "self-promotion" which he finds unnecessary when 621's already established themselves.

* UnwittingInstigatorOfDoom: Destruction of the Watchpoint under a personal mission from Walter is intended to shut off the Coral flow of power in the starting region -- only for a massive reaction to emit, blow up the facility, and nearly kill 621 [[spoiler:at the same time it forces Ayre into Contact with them]]. This subsequently causes the Planetary Closure Alliance to flip their lid and clamp down hard on Rubicon-3 to prevent any more interference with the Coral, and a hell of a lot of casualties on all sides as a result.

* DeconstructedCharacterArchetype: To the typical ''Armored Core'' protagonist. Every prior playable pilot was a pure HelloInsertNameHere, ambiguously augmented depending on Human PLUS or simply being a NEXT pilot, and strictly OnlyInItForTheMoney with absolutely no discernable traits, characterization or even consideration or relationships towards other characters. C4-621 inverts a number of these ideas by having a canon designation, augmented thoroughly to the point of being ambiguously disabled, have a handler they explicitly follow the orders of and surrounding cast members that impose themselves upon 621 rather than being completely distant and professional, and are absolutely primed for nothing but combat ''because'' they're effectively a "brain fried" purchased mercenary with no choice but to fight or die. The result is a character that brings out the best [[HumansAreBastards and worst]] of those around them by being the best proverbial killing machine around, while still being able to maintain a MysteriousPast and be a HeroicMime without imposing an actual characterization.

* DeconstructedCharacterArchetype: To the typical ''Armored Core'' protagonist. Every prior playable pilot was a pure HelloInsertNameHere, ambiguously augmented depending on if Human PLUS was in the respective game or not, and strictly OnlyInItForTheMoney with absolutely no discernable traits, characterization or even consideration or relationships towards other characters. C4-621 inverts a number of these ideas by having a canon designation, augmented thoroughly to the point of being ambiguously disabled, have a handler they explicitly follow the orders of and surrounding cast members that impose themselves upon 621 rather than being completely distant and professional, and are absolutely primed for nothing but combat ''because'' they're effectively a "brain fried" purchased mercenary with no choice but to fight or die. The result is a character that brings out the best [[HumansAreBastards and worst]] of those around them by being the best proverbial killing machine around, while still being able to maintain a MysteriousPast and be a HeroicMime without imposing an actual characterization.

* DeconstructedCharacterArchetype: To the typical ''Armored Core'' protagonist. Every prior playable pilot was a pure HelloInsertNameHere, ambiguously augmented depending on if Human PLUS was in the respective game or not, and strictly OnlyInItForTheMoney with absolutely no discernable traits, characterization or even consideration or relationships towards other characters. C4-621 inverts a number of these ideas by having a canon designation, augmented thoroughly to the point of being ambiguously disabled, have a handler they explicitly follow the orders of and surrounding cast members that impose themselves upon 621 rather than being completely distant and professional, and are absolutely primed for nothing but combat ''because'' they're effectively a "brain fried" purchased mercenary with no choice but to fight or die. The result is a character that brings out the best [[HumansAreBastards and worst]] of those around them by being the best proverbial killing machine around without ever having to break their HeroicMime nature.

* BreakOutTheMuseumPiece: In Chapter 5, [[spoiler:621 is tasked to escape Arquebus by using an old-generation AC prepared by Handler Walter. The aptly named JAILBREAK AC is, to put it lightly, a walking ''garbage'' of an Armored Core. Not only does it have poor Attitude and AP on top of piss-poor energy output, its only reliable weapon is its shoulder-mounted rocket launcher. Its so weak even the average MT can destroy it in a few seconds if you let it. Understandably, Ayer advises to avoid engaging in combat while in this AC as much as possible as you make your escape from Arquebus]].

** Although Walter does his best to be stoic about the deaths of 617, 618, 619, and 620, he breaks character and tells 621 "you did good today" after he kills Sulla, who openly bragged about killing 618 and [[ButForMeItWasTuesday wonders which one it was that he killed,]]

* IHaveThisFriend: As the story progresses, Walter starts offering you missions that have been passed onto him by "a friend" rather than any major faction, and talks about how said "friend" will benefit from these missions after they are completed. [[spoiler:Late in the game, Ayre notes that she has been monitoring Walter's communications and despite talking about how he was just in contact with his "friend", she detected no communications incoming or outgoing from Walter. When Walter finally tells you why he brought you to Rubicon and what his true goals, he starts by talking about his "friend" before pausing and then clarifying that he has been talking about himself all along.]]

* IHaveThisFriend: Displays a habit of attributing missions to an anonymous “friend” whenever he has a personal request for 621. [[spoiler: He finally drops the act when he comes clean about Overseer.]]

* AntiVillain: Like virtually every previous ''VideoGame/ArmoredCore'' protagonist, 621 is a [[HiredGuns mercenary]] whose only allegiance is to the highest bidder, and commits numerous atrocities on behalf of the ruthless {{MegaCorp}}s invading Rubicon-3. Apart from [[VideoGame/ArmoredCore4 Anatolia's Mercenary]] however, 621's reasons for participating in this system are among the most fleshed out and sympathetic.

* FlawedPrototype: Downplayed and implied. 621 is stated to be a fourth-generation augmented human, hence the "C4" in their designation. Some comments and the bios of other augmented characters imply old-gen augmentation surgery were dangerous to carry out[[note]]Walter states Sulla, a fellow augmented human, survived the first-generation augmentation, meaning first-gen augmentation surgery could be downright fatal.[[/note]], but eventually became safer and with more benefits as seen with the Vespers. As a result, some look down on 621 for being an 'inferior' augmented human, with at least one independent merc saying they should be in a museum. Not that any of this stops 621 from kicking all kinds of mech ass throughout the game or killing 'superior' augmented humans [[spoiler:like V.II Snail]].

* ShipTease: Of a sort. It's hard to tell what 621 thinks of her since they're unable to vocalize their thoughts or express them in any way, but Ayre herself shows nothing but concern and care for them. Even if there is no romantic undertones in their relationship, Ayre and 621 very much become TrueCompanions over the course of the game, explicitly stating she trusts them and will support them regardless of what sort of adventures they go on, [[spoiler:save for the "Fires of Raven" ending that is]].

* NotSoStoic: He is consistently cool-headed with very little capable of shocking Walter out of his professional demeanor, [[spoiler:which is why it's all the more noteworthy when he's a lot more agitated than usual when dealing with [[SymbioticPossession potential Coral eruptions]], or showing [[OhCrap visible fear]] in his voice when ALLMIND's Armored Core barrels towards him and "Cinder" Carla in the "Alea Iacta Est" route.]] In certain missions from the mid-game point onwards, he'll also show what seems to be genuine shock if 621 dies.