[...] this is closer to Aeon Natum Engel than Nobody Dies. You're taking the ideas of Eva and putting them in a more hard sci-fi/Half Life verse. I say go for it.
—Gregg Landsman about SCE
Strategic Cyborg Evangelion is a Real Robot Genre crossover between Evangelion and Half-Life. It's basic premise is simple: what if the Black Mesa Incident and the subsequent Combine invasion was Second Impact? And what if it happened two years ahead of SEELE's schedule, massively interfering with their plans? Humanity recovered from this calamity and even managed to carve out a small interstellar empire... only for the Angels to start attacking Earth in 2041, 23 years after the Combine occupation force was defeated. And the G-Man is definitely up to something as well.Good thing then that the Artificial Evolution Laboratory secretly and illegally developed Evangelions, even if they're only prototypes and the pilots are Ordinary High School Students... or are they?The primary changes regarding the cast are Kaworu replacing Shinji as main protagonist and pilot of Unit-01, Rei having the surname Ikari and living with Yui, Yui not having undergone the contact experiment as the Evas now contain sentient AIs and Asuka not being involved with the Eva project until later. While there's plenty of Early-Installment Weirdness, the author is performing an ongoing rewrite and restructuring of the story, currently complete up to chapter 14 - as such, all tropes below are subject to change.There are also two omakes. The Present serves as a prequel of sorts by introducing Rei's character as a Pintsized PowerhouseAction Girl, while Valentine Shenanigans has Kaworu learning the hard way that most bishies have an Unwanted Harem.The fanfic has a Characters page and a Shout Outs page.Not to Be Confused with the fantasy Dating Sim -like game by Rinmaru.
All Planets Are Earth-Like - Averted. It's specifically mentioned that Earth is the only planet where humans can survive without EVA equipment. Three other Goldilocks planets have been colonized but only Earth has natural surface water.
Case in point is Polygonus: while being a Goldilocks planet, it has higher surface gravity, an unbreathable nitrogen-helium-CO2 atmosphere and no surface water. The former two is being corrected via terraforming.
Heavy Worlder is also averted. Children born on Polygonus are mentioned to have a noticeably higher risk of developing skeletal deformities as simply being born on a planet with 1.1g does not make a human adapted to it.
Ancestral Weapon - the Beretta Shephard gives to Asuka as birthday present is implied to be the very same gun he carried back in Opposing Force.
Apocalypse How - Planetary societal disruption as per the Half-Life verse. Had the Combine occupation lasted another decade, it would've devolved to societal collapse.
Artificial Gravity - averted. All space scenes have the characters free-floating in zero G.
Bang Bang BANG - averted. Unit-01 firing its gatling cannon shatters every window nearby.
Beige Prose - English isn't the author's first language, plaguing the early chapters with this. It got better as the story progressed, though.
Big Damn Heroes - Asuka intervenes in the Shamshel battle to give Kaworu time to undig himself. Neither knows who the other is.
The first half of the Iruel battle ended up with Asuka and Kaworu getting bailed out by a Mysterious Protector.
Binary Suns - one of the human-inhabited systems is a binary system with all the planets orbiting one of the starsnote which is actually possible if the stars orbit each other far enough. Also a case of Alien Sky as every planet's night side experiences a midnight red glow from the smaller star for a full half year.
Bi the Way - Asuka and Mari are both bisexuals but are hiding it from their parents. Cue Hikari freaking out.
Almost like that fairy tale he once heard as a kid: the one about the Sleeping Beauty, the brave resistance fighter and the Civil Protection officers keeping her locked upand sedated in their guard post. Although he had his suspicion that it wasn't the original format of the story...
Bungled Suicide - Rei tries to kill herself when she realizes Kaworu is a better pilot than her, only to be foiled by him. She does jump off the building they're on but he falls after her, grabs her and teleports the two of them across the street into a thrashcan to cushion their landing.
Buxom Is Better - Asuka is highly envious of girls with larger busts: both Mari and Rei.
The Chessmaster - the G-Man is evidently up to something: he's constantly watching Kaworu and it's revealed that he sent the winged Eva against Israfel
Christianity Is Catholic - pointedly averted. Early on, Yui mentions Rei being a Christian but when Asuka asks her which denomination, Rei gives an unexpected answer: she's not part of any denomination because she wasn't baptized, therefore none would accept her.
Sahaquiel: when Kaworu blinded her, she started wildly flailing around with her plasmawhips to keep him out of knife range.
Ramiel: since it couldn't shoot and use an AT-field at the same time, it launched several attack drones to do offense while he shifted to defense. Justified in that it was being remote-controlled by Bardiel.
Gaghiel: you're an aquatic creature and is fighting against a flying opponent who can simply go higher if you try to catch her? No problem, you've got a Breath Weapon for that.
Deus ex Machina - sort of. Kaworu has no weapons to attack Shamshel with and the Angel's whips are preventing him from getting close enough for an unarmed attack. His Eva is damaged and about to run out of power. And then the Lance of Longinus erupts from the ground right next to him... Subverted for reasons revealed much later.
The G-Man seemingly pulls one during the Israfel battle: if his conversation with Haruka is of any indication, he was the one who sent in the unknown Eva to help the heroes.
Disaster Democracy - how the Confederacy of Man started off before being covertly overtaken by SEELE
Door Stopper - on the way to becoming one. The story is already over 150,000 words and according to Word of God, we're only about one-third into the plot.
Earth That Used to Be Better - population is barely half of what it was before Second Impact, the ecosystem is in shambles due to the introduction of several invasive alien predators, the surface is being ravaged by Negative Space Wedgies... as usual for something set in the source universes.
In the first five chapters, Kaworu looked like a typical teenage robot pilot. Then comes chapter 6 and Sachiel finds out the hard way justhowdeep Kaworu's resentment of those who misuse their power runs.
Rei's moment came in chapter 17 when she attempts to commit suicide, proving that underneath the hard exterior is an emotionally fragile person.
Explosive Overclocking - the F-type equipment's railguns have an adjustable power level. Repeatedly firing it on maximum output is mentioned as not really healthy for the machine's superstructure.
Flight - Evas with A-type equipment are capable of flying around at aircraft dogfighting speeds.
Four Philosophy Ensemble - Kaworu is the Optimist, Shephard is the Realist, Yui is the Cynic. Rei is somewhere between the Cynic and the Apathetic.
Frickin' Particle Beams: upon realizing conventional bullets don't have enough kinetic force to penetrate AT-fields, the AEL quickly equips their Evangelions with handheld Tau cannons. These ones do work... but not much better.
Full-Frontal Assault - the famous Rei-exiting-shower-to-find-someone scene is repeated with a twist: Kaworu is on the receiving end and Rei attacks him with a sword
Meta Mecha - F-type equipment, a powered armor for Evangelions
Mini Mecha - the Mk-III/B Durandal, designed for urban combat. A Fragile Speedster in that it can shrug off small arms fire... but not much else, preferring to avoid being hit in the first place instead.
Imported Alien Phlebotinum - lots of Combine technology was abandoned when Overwatch fled the planet. Humanity put all that to good use...
Insistent Terminology - whenever someone speaks Japanese, the author uses tenshi instead of the canon shito to refer to the Angels on purpose.
The Little Detecto - gravimetric sensors. They detect the minuscule spacetime distortions caused by the presence of mass and therefore cannot be confused by stealth. Lots of tightly-packed objects however WILL make them ineffective, hence the need for radars. AT-fields and dark energy are instantly spotted from a VERY long distance due to their spacetime warping properties.
Magnetic Hero - Kaworu uses almost the entire arsenal of said trope.
Type 2: Asuka doesn't really like him but fights alongside him anyway because she doesn't have a choice in the matter.
Type 4: Rei becomes interested in him after he foils her suicide attempt.
Type 5: most of his vigilant group follow him because they sympathize with his ideals.
Magnetic Weapons - several. Basically, if there's a large single-shot cannon that's not mounted into a multi-barreled configuration, chances are it's a railgun. Ships have spinal-mounted versions while in Chapter 26, Rei uses an oversized Rheinmetall 250mm SrK L/75 Donnerlanzebolt-action sniper railgun (with some Gun Porn).
It is a Period 8 transuranic element that cannot fit onto the periodic table of elements due to being exotic matter.
There are four known isotopes, all of them solid at room temperature. The base isotope is a yellow crystalline material used in various utilities. The second isotope and the only other one occurring naturally is a light blue fluorescent crystal. The third is a chemically inert violet crystal. The fourth is the only one to have received its own name (xenite) and is being researched as a possible power source.
It reacts violently to being bombarded with high-energy particles by releasing gravitational waves. Only a few kilograms of the material can generate waves powerful enough to damage steel and concrete structures and open microfractures in the fabric of space-time.
It has an atomic mass of over 300 but due to the adverse reaction to mass spectrometers, its exact mass and atomic number cannot be determined.
Waygates generate wormholes by using specially prepared crystals of the first isotope that contain artificial impurities of certain superconductors. These are capable of near-instantaneous wormhole generation across interstellar distances when electrically charged.
The second isotope can destabilize interdimensional portals to the point of implosion.
There are however a few that stretch belief. Especially gravimetric sensors, Waygates and of course the Evangelions themselves.
Mook Horror Show - Rei exterminates the entire crew of a truck convoy to get their cargo, taking advantage of the night and the thick fog to play Deadly Guest with them.
More Dakk - F-type equipment is focused on heavy fire support with no less than 48 barrels of autocannon, missile and railgun pointed at the target. When Rei opens up with it against Israfel's familiars, the results are quite spectacular.
Portal Network - the Waygate network, linking an unspecifiednote at least five number of systems together. It's pretty slow (less than a parsec per day) and can't operate in gravity wells, an issue the Sol gate dodges by being anchored inside the Earth-Moon L1 Lagrangian point).
Space Fighter - the SF-144 Nova sixth-generation space superiority fighter. Can't leave the atmosphere on its own but is confirmed to be carrier-based and capable of surviving atmospheric reentry. Kensuke gleefully lists off its capabilities when he sees one in the second season, including the lack of stealth capabilities.
A squad of them appears in the second season, chasing the unknown Eva with what are basically additional engines tacked onto them. Does the latter part sound familiar?
Kaworu is a Performer, going through battles with just basic knowledge and a heaping help of improvisation; this is ultimately why he becomes the MeatShield for the girls.
Asuka is a Technician, becoming a pilot with lots of prior training and knowledge. Her aptitude for mobility warfare and exploiting enemy weaknesses is reflected by her tactical use of flight and ranged weaponry to flank the opponent while Kaworu keeps it distracted.
Rei's status depends on who she's being compared to. She's the Technician to Kaworu's Performer, having far more skill and expertise; at the same time however, she's also the Performer to Asuka's Technician as Rei does far more flashy stunts which she backs up with Improbable Aiming Skills.
Universal Universe Time - averted. Upon arriving from another system via FTL, the CSS Odessa is asked to synchronize their chronometers by local flight control. Also, Shephard specifically tells Asuka to set her clocks to a 24-hour day.
Vigilante Man - Kaworu was expelled from his previous school because he helped a younger boy being bullied by the principal's son. Helped as in, put the bully in hospital. And he's about to continue right where he left off by rallying a group of schoolmates to do the same.
Virtual Soundtrack - mainly for the fight sequences. The author also compiled a list of opening/ending themes, one pair for each season and an additional ending for each Season Finale.
Waif-Fu - The Present has Rei taking out two armed thugs without breaking a sweat.
Wave Motion Gun - the Tau cannon they borrow for taking down Ramiel blasts through the Angel and two hills before flying off into space and hitting a satellite on the horizon. Furthermore, the F-type equipment's railguns are confirmed to be capable of hitting stratospheric targets when turned to sufficiently high power (see Explosive Overclocking above).
Averted in chapter 14: Shamshel is dispatched to find out where the hell did Sachiel go. Then played straight when the Angels probe the Evangelions' capabilities from different directions instead of charging in.
Applied Phlebotinum: biometal. Aside from its stated canon capabilities, biometal armor also functions as a full-body solar panel that continuously recharges the Eva's internal batteries while in direct sunlight.
Nitro Boost / Sprint Meter : the Evas' internal batteries operate like this while the Eva is externally powered, especially while the Eva in question is using Phantom VIR.
Not What It Looks Like: upon moving in, Asuka attempts to evict Shinji out of her room like in canon. This time however, Asuka didn't even know Shinji lives with Misato and Shinji walks in just as Asuka is holding one of her panties, wondering how it got there. Needless to say, she's NOT amused.
Wouldn't Hit a Girl: Toji doesn't punch Shinji this time specifically because she's a girl. When Rei badmouths his sister as having deserved her injury, he loses his shit and attacks her, resulting in Rei promptly handing his ass to him.