Being a gacha game with many characters, it is given that it will spawn tons and tons of fan nicknames.
- T-Dolls as a whole are called "raifus", a portmanteau of "rifle" and "waifu".
- "African Cannon" for NTW-20, due to her being an Anti-Materiel Rifle made in South Africa, and her skill acts like a cannon.
- "African Commander" for free players who don't spend money in the game, synonymous with poverty.note
- Likewise, "European Commander" for players who spend a huge sum of money to bribe their way to victory.
- "Beggar Run" or "Corpse Dragging" is for a certain trick used to reduce ammo and food consumption during farming runs. It involves switching dolls around so that only damage dealer dolls are supplied with food and ammo, while the damage tanking dolls at the front are left as meat shields, unable to attack.
- "Rich Run" refers to farming while fully supplying all your dolls.
- "Zas-Run" refers to a very unique variation of the beggar run that uses Zastava's skill to wipe out a large number of armored weak units. It is often done in very specific stages such as 6-3N or 8-1N.
- The combination of IWS-2000, Stetchkin, Five-SeveN, M950A, and Welrod Mk.2 is named "Exodia Squad" for the card combination in a certain card game. The name comes from the fact that a) the combination maximizes the firepower of IWS-2000's skill, and b) all of the dolls used in this combination are notoriously rare and hard to get.
- A similar combination that uses a mod 2 or 3 M4A1 instead of IWS is called "M4-dia squad".
- IWS herself under these formations is also nicknamed "Griffon's Jupiter" or "Griffon Cannon" due to her immense firepower.
- "Grenade Squad" refers to an AR-SMG combination that employs ARs with grenade or other similar splash damage skills.
- "Gunboat" or "Tankbuster" refers to the abnormal combination of 4 machine guns and one doll with high mobility (usually Contender or AR), devised solely to combat the tanks in the singularity event. The four MGs mow down all of the tanks' escorts before the tanks fire, and then immediately retreat to avoid damage from the tank fire. The AR (or Contender) doll then runs around, avoiding tank fire, until it finally runs up to the tanks' blind spot, and then chips away at the now-inert tanks.
- M950A has "Calico". She also has "Seaweed" for her hairstyle.
- Welrod Mk.2 is called "Bakana" in the Korean server fandom, due to her infamously horrible, out-of-character voice acting.
- "Slutbunny" for SR-3MP, a combination of her rabbit motif and her rather revealing and practically non-existent outfit.
- "Cinnamon Roll" for M4A1, due to her quirky and kinda air-headed personality.
- Fans have also taken to naming M4A1 "Mai", by applying Calculator Spelling on her name. This is also often combined with the "Cinnamon Roll" nickname above to form "Cinnamai".
- Generally, if a doll's name even sort of looks like an existing word, you can bet that the English-speaking fanbase will latch onto it. The most popular by a wide margin is "Shrimp" for the aforementioned SR-3MP because of how well it fits, while OTs-12 Tiss is often called "Oats" just because it's easier.
- MP5 is called "Milk" because of her white hair and her dialogue.
- In this context, MP5's exclusive equipment is called "Milk Carton".
- Relatedly, Heavy Production is often referred to as "MP5 Production" due to the absurd rate at which MP5 appears when using it despite her high rarity.
- RO635 is often called "Ro-chan" in the Korean server.
- After she got converted into a Dinergate by SOP II in a desperate attempt to save her life, her Dinergate form is often nicknamed "RORO" or "ROnergate".
- MDR is nicknamed "Shitposting Gremlin" due to her internet Troll persona.
- "German Emperor" for Kar98K, due to her majestic attire and attitude.
- She is also called "Boots" in the Korean Server fandom.
- "Little Monster" for HK416, due to her Hidden Buxom.note
- G11 is called "Sleepyhead", for obvious reasons.
- Thanks to Caseless G11 Memes
, the term "Sleepo Beepo" is also popular.
- Thanks to Caseless G11 Memes
- AS Val MOD is the "New night battle queen" or the "Night battle commissar" for dethroning Groza below as the champ of night battles.
- OTs-14 Groza is called "Night battle queen" for her extremely powerful skill in night battles.
- 9A-91 is called "Night battle princess" for her significantly powerful skill in night battles.
- T91 is mockingly called "Night battle lady-in-waiting" for being very weak overall, and her skill that only activates in night battles being weak.
- ST AR-15 is often called "Star-chan".
- Her exclusive equipment, the .300 AAC Blackout ammunition, are often called "Black Rounds".
- She is also given the nickname "School Shooter", due to her weapon's infamous reputation of being used by mass shooters at school. It doesn't help that her skin alludes to this association.
- The sister dolls Type 95 and Type 97 are called "Chinese Sisters".
- G41 is called "Puppy" for her appearance and behavior resembling those of a dog and "Homete" for her voice line. The English fandom also nicknames her "Doggo" due to said dog behavior.
- Similarly, due to SOPMOD's puppy-like behavior to the Commander, she's been nicknamed "Soppo" by the fans, a portmanteau of SOPMOD and Doggo.
- Also to note, ART556 is often called "Green Homete" for her similar appearance to G41 but differing color palette.
- FNC is called "Choco" for her craving of chocolates. Later revealed in Neural Cloud to be her actual name.
- The sister dolls Carcano M1891 and Carcano M91/38 are collectively called "Carcano Sisters".
- Individually, they have "Strawberry-cano" and "Grape-cano", respectively, in the Korean fandom. The name comes from their overall color schemes.
- WA2000 is often called "WA-chan" or just "Wa" in the Korean server fandom.
- "Rib" or "Ribey" for Ribeyrolles as both a shortened name and an Affectionate Nickname and her hard to pronounce name note . She's also being called "Bloodbag" due to the IV drip carried by her.
- Lee-Enfield's child costume is sometimes referred to as "Loli-Enfield" or "Loli-en".
- Any rifle T-dolls with either the aimed or interdiction shot skillsnote are known as "bamboos", a term that originated on the Korean server due to the tendency for Korean MMOs to include some sort of bamboo rod or stick as a very powerful weapon. "Bamboo" rifles that have skills with an initial cooldown of 10 seconds are called "small bamboos", and the ones with 15 seconds are called "Large bamboos".
- Negev's child costume is called "Logev".
- "Captain China" for Type 97 Shotgun, due to her carrying a circular shield with a red star emblem, resembling Captain America.
- "Milk Shotgun" for M37, as of the introduction of her summer outfit.
- "Northern Hemispheres" is also popular for obvious reasons.
- Super-Shorty is often just called "Shorty".
- The Sangvis Ferri Destroyer has "Dis-Loli" due to her childish proportions and personality.
- Her alternate form Gaia, due to its more mature appearance, is nicknamed "Dis-Sis".
- "Nanda" is another common one, named after her Verbal Tic/engaging-enemy quote.
- "The Big Four" refer to the four best general-purpose machine guns in the game. The group consists of MG5, PKP, PK, and M2HB. They get this treatment as their passive skills are some of the best skills for a machine gun in the game.
- "Lord Tachanka's wife" for DP28, which spawned from the Rainbow Six Siege community where a modified DP28/RP46, formerly on a stand, is the signature weapon of said character. Some fanart of DP28 even have her using the same setup, or being used as the MG in said setup.
- "Sopa de macaco"note : Taurus MT-12, due to the eponymous meme that the internet has associated with Brazil.
- "Gundam" for Doppelsoldners.
- Commanders that treat their T-Dolls badly or are mean to them in fan comics are called "Shitkicunt" or "Shikicunt", a portmanteau of "Shit", the romanization of the Japanese word Commander, "Shikikan", and '"Cunt".
- Persica is called "Cat Mom" by fans due to her cat ears and how she treats the Anti-Rain Team like her daughters and the fact in the lore she helped design the current generation of T-Dolls.
- "NVidia" and "AMD" for the fire control chips for M1918 BAR and the UMP trio or Mosin-Nagant, respectively, due to their similar appearances to the GPU units from said manufacturers. M1918's chip is even named "Titan", just to further drill the point home.
- Similarly, Ameli's unique upgrade chipset is called "RAMs", due to them being literally an array of 3 RAM cards.
- Among the South Korean fandom, M16A1 is sometimes called "Old Brother" because many players carried the actual weapon during their mandatory service in the military, before it was replaced with indigenous rifles.
- "Brown", "Green", and "White Suomi" for Daewoo K2, Kel-Tec RFB and Desert Eagle, respectively, due to their faces looking nearly identical to their eponymous fellow Anmi-illustrated T-Doll.
- Some have started calling the Parapluie virus "robot AIDS".
- Touhou Frontline or Azur Frontline for the final battle against Isomer Black or rather, Nimogen, due to being an Unexpected Shmup Level with a Bullet Hell boss.
- The Korean fandom frequently refers to AK-12 as "Miley", a portmanteau of "Ma" (AK typed on a Korean keyboard) and "Illi" (the individual words for 1 and 2 read together).
- "Strider" or "Stryder" for the White Faction Thunder, due to it resembling the Combine Strider.
- "Ball Dispenser" or "Ballshitter" for the KCCO Pathfinder, due to it being a Mook Maker which dispenses balls-shaped robots.
- Fans were particularly quick to call M200 "Aimbot" and "Quickscoper" due to her skill's nature and her gun being a rather infamous choice for players of military-themed shooter games. She's also being called "Noodle Legs" due to her long, slender, almost Off-Model legs. Fans also affectionately call her "Potato" due to how her face is similar to KanColle characters drawn by Shibafu, who all have similar generic faces nicknamed "Potato style".
- "Babushka", meaning "grandmother" in Russian, for Nagant M1895, due to her tendency to portray herself as an old lady.
- "Commander MADCORE" for the white-haired, monocle-wearing commander in the loading screen 4koma and Madness Chapter anime, named for the illustrator of said 4koma.
- "Abakan" for AN-94, which is the name of the project that created her assault rifle. She's also often affectionately being called "Precious One" due to her endearing Adorkable tendencies or "Russian Space Magic" due to her prowess/a carryover from the real weapon's Ironic Nickname.
- She has also been given the fan name "Annie", formed using the two letters in the appellation.
- "ugi" (all lowercase letters optional) for Micro Uzi due to being commonly depicted as stupid, with "ugi" being "Uzi" misspelled/mispronounced in a childlike way.
- "Creepy Potato" for HS2000 due to her grim outlook on life and her uncanny resemblance to M200 above.
- "Shotacon/Child Predator" or "Sugoi Dekai" for VSK-94, the former due to her awkward love for children, the latter due to her physical resemblance to Hana Uzaki.
- "Chocolate IDW" or "Buff/Swole IDW" for CR-21 due to being both Little Bit Beastly and drawn by the same artist.
- "Yeet Cannon" for Mk23, after a certain incident involving Hi-Point and Heckler & Koch.
- "Hoxy" note for Five-seveN due to being very hard to farm when introduced; notable for starting as a taunt towards unlucky players who couldn't get her.
- Springfield is sometimes called 春田note by Chinese and Japanese fans, a rather literal translation of her English name using the characters for "spring" and "field".
- "G&K Rangers" or "infunkun Rangers" for P22, PM-06, R5 and PM-9, the brightly-colored Dolls drawn by infunkun.
