I found a few more interesting things on The Video Game Historian's youtube channel.
It's worth reading the comments too, because sometimes other references are found ("Under the Skin" playlist).
The Kopparhed skin for Perino Model 1908
Associate Game Design Director at DICE (EA Digital Illusions CE AB)
Battlefield 1 WW1 Concept Co-creator & Era Game Designer
is this a true story?
So the Kopparhed skin for the Perino is in fact named after Martin Kopparhed
Mari skin for Type 38 Arisaka
Mari is a feminine given name in the Breton, Japanese, Armenian, Estonian, Georgian, Hungarian, Finnish, Welsh, Swedish and Norwegian languages.
In Japanese it appears as Mari (まり, マリ), or can be written using different kanji characters so that it means, respectively: 万里, "long distance".
is this a true story?
Some of these would be impossible to figure out, such as the "Mari" for the Arisaka Type-38, which is a reference to the skin's artist's Japanese wife.
M1917 Trench Carbine Skins:
Distinguished: Feederle, Oberndorf
Legendary: The Rohr, Stramm
Oberndorf skin for M1917 Trench Carbine (https://en.wikipedia.org/wiki/Mauser): Peter Paul Mauser, often referred to as Paul Mauser, was born on 27 June 1838, in Oberndorf am Neckar, Württemberg. His brother Wilhelm was four years older. Peter Paul was conscripted in 1859 as an artilleryman at the Ludwigsburg arsenal, where he worked as a gunsmith. By December 1859 he had so impressed his superiors that he was placed on inactive military service and assigned to the royal factory at Oberndorf. Paul engaged his older brother Wilhelm in working on a new gun system in their spare time after work. Paul was the engineer and designer but Wilhelm took on the task of manager for their interests with the Oberndorf factory.
Feederle skin for M1917 Trench Carbine (https://en.wikipedia.org/wiki/Mauser): C1896 Pistol. Mauser branched out into pistol design in 1896, producing the C96, commonly known as "broomhandle," designed by the three brothers Fidel, Friedrich, and Josef Feederle (often erroneously spelled "Federle").
The Rohr skin for M1917 Trench Carbine (https://en.wikipedia.org/wiki/Willy_Rohr): Willy Martin Ernst Rohr (19 May 1877 – 8 March 1930) was a German Army officer who was a major contributor to the development of infantry tactics in World War I, particularly for the system of Storm Battalions.
Stramm skin for M1917 Trench Carbine (https://en.wikipedia.org/wiki/August_Stramm): August Stramm (29 July 1874 – 1 September 1915) was a German war poet and playwright who is considered the first of the expressionists. Stramm's radically experimental verse and his major influence on all subsequent German poetry has caused him to be compared to Ezra Pound, Guillaume Apollinaire, James Joyce, and T.S. Eliot. A reserve officer in the Imperial German Army, Stramm was called up to active service at the outbreak of World War I and was killed in action on the Eastern Front.
Frommer Stop Pistol skins:
Distinguished: Caporetto, JagdKommando
Legendary: The Emperor, Inhaber
Caporetto skin for Frommer Stop Pistol (https://en.wikipedia.org/wiki/Battle_of_Caporetto): The Battle of Caporetto (also known as the Twelfth Battle of the Isonzo, the Battle of Kobarid or the Battle of Karfreit) was a battle on the Italian front of World War I. The battle was fought between the Kingdom of Italy and the Central Powers and took place from 24 October to 19 November 1917, near the town of Kobarid (now in north-western Slovenia, then part of the Austrian Littoral). Austro-Hungarian forces, reinforced by German units, were able to break into the Italian front line and rout the Italian forces opposing them. The battle was a demonstration of the effectiveness of the use of stormtroopers and the infiltration tactics developed in part by Oskar von Hutier. (reference to MP18's The Hutier skin)
JagdKommando skin for Frommer Stop Pistol (Indiana Neidell and The Great War youtube channel): The Jagdkommandos were Austria-Hungary’s special assault troops during WWI. From their pre-war origins, these troops had to adapt to modern war, and did so with some success. However, towards the end of the war their successes turned to failures and the Jagdkommandos faded into relative obscurity compared to their German and Italian counterparts.
The Emperor skin for Frommer Stop Pistol (https://en.wikipedia.org/wiki/Emperor_of_Austria): The Emperor of Austria (German: Kaiser von Österreich) was the ruler of the Austrian Empire and later the Austro-Hungarian Empire. Franz Joseph I or Francis Joseph I (German: Franz Joseph Karl, Hungarian: Ferenc József Károly, 18 August 1830 – 21 November 1916) was Emperor of Austria, King of Hungary, and the other states of the Habsburg monarchy from 2 December 1848 until his death on 21 November 1916. He was succeeded by his grand-nephew Charles I & IV, who reigned until the collapse of the Empire following its defeat at the end of the First World War in 1918.
Inhaber skin for Frommer Stop Pistol (https://en.wikipedia.org/wiki/Inhaber): A Proprietor, or Inhaber, was a term used in the Habsburg military to denote special honors extended to a noble or aristocrat. The Habsburg army was organized on principles developed for the feudal armies in which regiments were raised by a wealthy noble, called the Inhaber (proprietor) who also acted as honorary colonel. Originally, he raised the regiment, funded its needs, and received a portion of its revenue, which might be plunder or loot. He also shared in its shame or its honors. The Prussian and Imperial Russian military adopted a similar system.
March - last edited March
Carcano M91 skins:
Distinguished: Charge of Stupizza, Il Novantuno
Legendary: The Alessandria, De Chirico
Il Novantuno skin for Carcano M91 (https://en.wikipedia.org/wiki/Carcano): It was developed by the chief technician Salvatore Carcano at the Turin Army Arsenal in 1890, and was originally called the Modello (model) 91 or simply M91. Its official designation in Italian is simply Modello 1891, or M91 ("il novantuno" or "the ninety-one", as commonly known in Italy). Variants: Moschetto Modello 1891 (Musketoon Model 1891). These have been referenced as ‘for Cavalry’ (per Cavalleria) carbines in both English and Italian lingo however, it is incorrect and no such name has ever been used that called them as such. These were initially made to be issued to Cavalry Troops but were however issued to other troops as well such as the Carabinieri Reali, Bersaglieri Ciclisti, and later to the Paratroopers and the MVSN Troops.
The Alessandria and Charge of Stupizza skins for Carcano M91 https://en.wikipedia.org/wiki/Regiment_%22Cavalleggeri_di_Alessandria%22_(14th): Regiment "Cavalleggeri di Alessandria" (14th). The Regiment "Cavalleggeri di Alessandria" (14th) (Italian: Reggimento "Cavalleggeri di Alessandria" (14°) - "Chevau-légers of Alessandria") is an inactive cavalry unit of the Italian Army. In 1916 the regiment distinguished itself in the Sixth Battle of the Izono (I found a wiki typo, The Sixth Battle of the Isonzo). After the Italian defeat in the Battle of Caporetto the regiment covered the retreat of the IV Army Corps to the Piave river and fought delaying actions at Idrsko, Caporetto, Stupizza, Sequals, Marano, and Zugliano. The regiment lost half its men before crossing the Piave river to safety.
De Chirico skin for Carcano M91 (https://en.wikipedia.org/wiki/Giorgio_de_Chirico): Giorgio de Chirico. Giuseppe Maria Alberto Giorgio de Chirico (10 July 1888 – 20 November 1978) was an Italian artist and writer born in Greece. In the years before World War I, he founded the scuola metafisica art movement, which profoundly influenced the surrealists. His best-known works often feature Roman arcades, long shadows, mannequins, trains, and illogical perspective. At the outbreak of World War I, he returned to Italy. Upon his arrival in May 1915, he enlisted in the army, but he was considered unfit for work and assigned to the hospital at Ferrara. The shop windows of that town inspired a series of paintings that feature biscuits, maps, and geometric constructions in indoor settings.
Assault Truck Skins:
Distinguished: Drosdovets, Freikorps, Kolyvanets, Lacplesis, Revelets, Siberian, Uralets, Wielkopolska, Zabaikalets
Kolyvanets and Zabaikalets skins for Assault Truck (https://www.tanks-encyclopedia.com/ww1/russia/Putilov-Garford.php): On April 16 the first batch of "Garford-Putilov" was put at the disposal of the passive defense. After two and a half weeks to train the crews, on May 3rd, 1915, this unit was sent to the South-Western Front, at the disposal of the 5th Company of armored cars. In total the Army was provided thirty of these AC platoons, which were nearly all assigned a proper name (ex. the 5th Platoon was the "The Immortals" or "Fearless", 6th Platoon the "Siberians", "Terrible", "Zabaikalets", "Kolyvanets", "Bayan" etc.).
Uralets skin for Assault Truck (https://en.wikipedia.org/wiki/Garford-Putilov_Armoured_Car): Ordered in September 1915 by the naval department, the Naval Garfords possessed a number of differences from the Army version. A number of sources indicate that instead of the standard chassis the naval Garfords used a lengthened chassis of the new 5 ton truck from the Garford Motor Truck Co., apparently possessing a more powerful engine (35 horsepower (26 kW)). This allowed the strengthening of the armour of the body to 7 – 9 mm and the turret to 8 – 13 mm although the hull configuration remained the same. A Garford (a naval variant called "Uralets") was taken by the Poles in battle on the Bobruisk - Mogilev highway near the village of Stolopisch.
Siberian and Revelets skins for Assault Truck (https://en.wikipedia.org/wiki/Garford-Putilov_Armoured_Car): Naval Garfords took an active part in fighting at Reval (modern day Tallinn) during the final stages of the First World War. For example, naval versions issued to the 1st Siberian Rifle Corps with the names "Revelets" and "Nepobedimii" supported the 11th and 77th rifle regiments which were defending the capes of Olay, Rolbum, Borenberg and Radenpreis until the end of 1917.
Drosdovets skin for Assault Truck (https://www.tanks-encyclopedia.com/ww1/russia/Putilov-Garford.php): During the Civil War, captured Garford-Putilovs were largely used by the warring parties, but mostly by the Bolsheviks. One of the first use by the "Whites" was in the Yaroslavl uprising which began in July 1918. These armored trucks participated in almost all major operations of the Civil War on both sides, and many machines were renamed according to the preferences of their new owners, like "Karl Marx", "Trotsky", Kornilovite" and "Drozdovets".
Freikorps skin for Assault Truck (https://en.wikipedia.org/wiki/Freikorps): Freikorps (German: "Free Corps" or "Volunteer Corps") were irregular German and other European military volunteer units, or paramilitary, that existed from the 18th to the early 20th centuries. They effectively fought as mercenary or private armies, regardless of their own nationality. In German-speaking countries, the first so-called Freikorps ("free regiments", Freie Regimenter) were formed in the 18th century from native volunteers, enemy renegades, and deserters. In the aftermath of World War I and during the German Revolution of 1918–19, Freikorps consisting largely of World War I veterans were raised as paramilitary militias. They were ostensibly mustered to fight on behalf of the government against the Russian Soviet Federative Socialist Republic backed German communists attempting to overthrow the Weimar Republic.
Wielkopolska skin for Assault Truck (https://www.tanks-encyclopedia.com/ww1/russia/Putilov-Garford.php): Poland also got three former Russian "Garford-Putilov". Later, another renamed «Generał Szeptycki», was included in the "Wielkopolski Pluton Samochodów Pancernych" or Wielkopolska platoon of armored cars. It was sent to Warsaw, at the disposal of third armored car division, and in 1921 came to Grodno.
Lacplesis skin for Assault Truck (https://www.tanks-encyclopedia.com/ww1/russia/Putilov-Garford.php): Latvia also got its share of these vehicles, like the «Kurzemnieks», camouflaged in the 1920s, acquired during the fighting in November-December 1918. But later alliances shifted and German troops encountered fire from a Latvian "Garford" under the name of «Lacplesis», which covered the retreat of the infantry. One was captured and immediately incorporated into the German Freikorps and used against their former owners on the approaches to Riga.
Heavy Bomber skins:
Distinguished: Alyosha, Bogatyr, Chobotok, Dobrynia, Kievsky, Monino, Poganoe, Russky Vityaz, Russobalt
Russobalt skin for Heavy Bomber (https://en.wikipedia.org/wiki/Russo-Balt): Russo-Balt (sometimes Russobalt or Russo-Baltique) was one of the first Russian companies that produced vehicles and aircraft between 1909 and 1923. In early 1912 company director M. V. Shidlovsky hired 22-year-old Igor Sikorsky as the chief engineer for RBVZ's new aircraft division in St. Petersburg. This group quickly produced a series of airplanes. Among these were the S-5, S-7, S-9, S-10 (1913), S-11, S-12, S-16 (1915), S-20 (1916), Russky Vityaz (The Grand) (1913), a series named Il'ya Muromets starting in 1913, and its planned successor, the Alexander Nevsky (1916).
Russky Vityaz skin for Heavy Bomber (https://en.wikipedia.org/wiki/Sikorsky_Russky_Vityaz): The Sikorsky Russky Vityaz (Russian: Русский витязь), or Russian Knight (S-21), previously known as the Bolshoi Baltisky (Russian: Большой Балтийский) (The Great Baltic) in its first four-engined version, was the first four-engine aircraft in the world, designed by Igor Sikorsky and built at the Russian Baltic Railroad Car Works (Russo-Baltiiskyi Vagonnyi Zavod or R-BVZ, Russo-Balt) in Saint Petersburg in early 1913.
Kievsky skin for Heavy Bomber (https://en.wikipedia.org/wiki/Sikorsky_Ilya_Muromets): In 1913 the Ilya Muromets No. 107 flew for the first time, and on 11 February 1914, the second prototype (factory airframe 128) took off for its first demonstration flight with 16 passengers aboard, marking a record for number of passengers carried. From 30 June to 12 July 1914, it set a world record by making a trip from Saint Petersburg to Kiev, a distance of some 1200 km, and back. During an Imperial military review at Krasnoye Selo in July, Nicholas II decorated and christened the Ilya Muromets Type B Military Prototype, No. 128, the "Kievsky."
Monino skin for Heavy Bomber (https://en.wikipedia.org/wiki/Central_Air_Force_Museum): The Central Air Force Museum (Russian: Центральный музей Военно-воздушных сил РФ) is an aviation museum in Monino, Moscow Oblast, Russia. A branch of the Central Armed Forces Museum, it is one of the world's largest aviation museums, and the largest for Soviet aircraft, with a collection including 173 aircraft and 127 aircraft engines on display. One Ilya Muromets S-22 replica exists in the Monino Air Force Museum near Moscow built in 1970.
Bogatyr, Alyosha, Dobrynia and Chobotok skins for Heavy Bomber (https://en.wikipedia.org/wiki/Ilya_Muromets): The Sikorsky Ilya Muromets aircraft series was named after Ilya Muromets, a hero from Slavic mythology. Ilya Muromets (Russian: Илья Муромец), or Ilya of Murom, sometimes Ilya Murometz, is one of the bogatyrs (epic knights) in Bylinas of Kievan Rus. He is often featured alongside fellow bogatyrs Dobrynya Nikitich and Alyosha Popovich. The tales are set in the time of the Kievan Rus'. Attempts have been made to identify a possible historical nucleus for the character. The main candidate is Ilya Pechersky [ru], a monk of the 12th century who was beatified in the Orthodox Church in 1643. According to hagiography, before taking his monastic vows Ilya was a warrior famous for his strength. His nickname was Chobotok, Old East Slavic for "(small) boot", given to him after an incident when Ilya, caught by surprise, fought off enemies with only his boot.
Poganoe skin for Heavy Bomber (https://en.wikipedia.org/wiki/Idolishche): Idolishche Poganoye (Russian: Идолище Поганое) is a mythological monstrosity from Russian bylinas (epic tales) and other folklore; he personifies pagan forces invading the Russian lands. The name literally means "pagan idol", with a Russian augmentative suffix "-ishche". The major epic sources that involve Idolische are various variants of the bylina "Ilya Muromets and Idolishche Poganoye" ("Илья Муромец и Идолище Поганое"), which may also characterise Idolishche as "Tatarin" (the Tatar), in reference to the Tatar-Mongol yoke.
C-Class Airship Skins:
Distinguished: HMA No. 3, HMA No. 8, HMA No. 16
HMA No. 3 skin for C-Class Airship (https://en.wikipedia.org/wiki/RNAS_Kingsnorth): RNAS Kingsnorth. RNAS Kingsnorth was a First World War Royal Navy air station for airships, initially operating as an experimental and training station, it later moved on to large scale production of airships. It also provided anti-submarine patrols. A number of experimental and prototype blimps were designed and tested there and until 1916, it was the lead airship training establishment in the Royal Naval Air Service (reference to Farquhar-Hill's The RNAS skin). Kingsnorth also received an Astra Torres airship.
HMA No. 3, HMA No. 8 and HMA No. 16 skins for C-Class Airship (https://en.wikipedia.org/wiki/Astra-Torres_airship): Astra-Torres airship. The Astra-Torres airships were non-rigid airships built by Société Astra in France between about 1908 and 1922 to a design by the Spaniard Leonardo Torres Quevedo. Britain's Royal Naval Air Service purchased AT-14, AT-17 and AT-19, these becoming HMA No. 3, HMA No. 8 and HMA No. 16 respectively. They went through testing and evaluation at RNAS Kingsnorth before all were later taken out of service in May 1916, although the Astra-Torres design was imitated in Britain's own Coastal class blimps that served through to the end of the War. The Coastal Class (often known as the C-Class or simply the 'Coastals') were a class of non-rigid airship or "blimp" used by the Royal Naval Air Service (RNAS) during World War I.
I found another reference to the Chauchat's Le Flambeau skin:
Le Flambeau skin for Chauchat (https://fr.wikipedia.org/wiki/In_Flanders_Fields): In Flanders Fields. "In Flanders Fields" is a war poem in the form of a rondeau, written during the First World War by Canadian physician Lieutenant-Colonel John McCrae. "In Flanders Fields" is very popular in Canada, where it is a staple of Remembrance Day ceremonies and may be the best-known literary piece among English Canadians. It has an official French adaptation, entitled "Au champ d'honneur", written by Jean Pariseau and used by the Canadian government in French and bilingual ceremonies. Among its uses in popular culture, the lines "To you from failing hands we throw the torch. Be yours to hold it high." / "Nos bras meurtris vous tendent le flambeau, à vous toujours de le porter bien haut." has served as a motto for the Montreal Canadiens hockey club since 1940.
Heavy Tank Skins:
Legendary: Chrome Dazzle, Desert Gold, Metallic Lozenge
Distinguished: Alter Fritz, Baden I, Cyklop, König Wilhelm, SchnucK, Siegfried
All A7Vs were christened by their crews. The “Nixe” for example took part in the famous duel at Villers Bretonneux, in March 1918. “Mephisto” was captured on the same day by Australian troops. It is now displayed at Brisbane Anzac museum. Other tanks were named “Gretchen”, “Faust”, “Schnuck”, “Baden I”, “Mephisto”, “Cyklop/Imperator”, “Siegfried”, “Alter Fritz”, “Lotti”, “Hagen”, “Nixe II”, “Heiland”, “Elfriede”, “Bulle/Adalbert”, “Nixe”, “Herkules”, “Wotan”, and “Prinz Oskar”.
Chassis number: 502/503 and Tank name: Faust, Kronprinz Wilhelm, Wilhelm, Heiland. Possibly named König Wilhelm at one point. 502 became a Geländewagen ("cross-country vehicle"), and was not fitted with armour. After a defect of chassis 502 in March 1918, its structure was set to chassis 503 (503 suffered a cylinder head crack in April 1918). Gifted in October 1918 and taken by the British who scrapped it locally.
Chassis number: 504/544 and Tank name: Schnuck. After a defect of chassis 544, its structure was set to chassis 504. Damaged by friendly fire at Fremicourt on 31 August 1918 it was abandoned by crew, and captured by troops of the New Zealand Division three days later. Displayed in London on Horse Guards Parade 1918/19 and given to the Imperial War Museum in 1919 but disposed of in 1922 with only the main gun kept.
Chassis number: 505 and Tank name: Baden I. Scrapped by the Allies in 1919.
Chassis number: 507 and Tank name: Cyklop. Briefly in hands of Freikorps (reference to Assault Truck's Freikorps skin) at Lankwitz after the Armistice. Scrapped in 1919.
Chassis number: 525 and Tank name: Siegfried. Scrapped by the Allies in 1919.
Chassis number: 560 and Tank name: Alter Fritz. Lost at Iwuy, 11 October 1918.
April - last edited April
Type 38 Arisaka Skins:
Distinguished: Mitsuomi, Sanpachiju
Legendary: Mari, Wakamiya
Sanpachiju skin for Type 38 Arisaka (http://www.nambuworld.com/t38.htm): The Type 38 rifle (三八式歩兵銃, sanhachi-shiki hoheijū) is a bolt-action service rifle that was used by the Empire of Japan predominantly during the Second Sino-Japanese War and Second World War. The design was adopted by the Imperial Japanese Army in 1905 (the 38th year of the Meiji period, hence "Type 38"). Below that are three kanji characters: san-pachi-shiki (三八式), “three eight type”, or Type 38. The Japanese soldiers usually called this rifle the sanpachiju (三八銃, 38 gun) for short.
Mitsuomi skin for Type 38 Arisaka (https://en.wikipedia.org/wiki/Kamio_Mitsuomi): Kamio Mitsuomi, 1st Baron, (神尾 光臣, 27 February 1856 – 6 February 1927) was a Japanese general in the Imperial Japanese Army, who commanded the Allied land forces during the Siege of Tsingtao in World War I.
Wakamiya skin for Type 38 Arisaka (https://en.wikipedia.org/wiki/Japanese_seaplane_carrier_Wakamiya): Wakamiya (Japanese: 若宮丸, later 若宮艦) was a seaplane carrier of the Imperial Japanese Navy and the first Japanese aircraft carrier. She was converted from a transport ship into a seaplane carrier and commissioned in August 1914. She was equipped with four Japanese-built French Maurice Farman seaplanes (reference to the Autoloading 8's Farman skin). In September 1914, she conducted the world's first naval-launched air raids. On 6 September 1914 a Farman aircraft launched by Wakamiya attacked the Austro-Hungarian cruiser Kaiserin Elisabeth (reference to the Gewehr M.95's Die Kaiserin Elizabeth skin) and the German gunboat Jaguar in Qiaozhou Bay; neither ship was hit.
Mari skin for Type 38 Arisaka (???, based on a true story?). The Video Game Historian Youtube Channel: "Mari" for the Arisaka Type-38 is a reference to the skin's artist's Japanese wife. In Japanese it appears as Mari (まり, マリ), or can be written using different kanji characters so that it means, respectively: 万里, "long distance".