Well the 1920-era fictional units can only appear if you end up invading America in accordance with the Zimmermann telegram, otherwise the campaign ends in 1918. Because of the virtual impossibility of this mission as it is, I don't see why you can't have fictional units as well.
In this alternate history, Germany owns most of Europe, and therefore has quite extensive industrial power, and has captured many British Designs, so any technology up to around 1935 can theoretically be achieved if all minds are going towards one goal. And seeing as it is far easier to take Paris in 1914, that is what most people will manage to do - allowing scientists roughly five years to come up with these designs.
Nearly all of the new units are realistic upgrades of 1918 equipment - all Infantry are just slight equipment upgrades from their 1916 and 1918 counterparts. Sturmpionieres are just stormtroopers who have better weapons, and Zeppelins *could* have dropped poison gas, but there was no use to drop it over London. The main reason limiting Zeppelins in the west was AA fire and fighters, but in America this is a different story as America's WWI air force kind of sucked. (Mk.XII and Vickers I tanks were both realistic designs - the British got to Mk.X before embarking on a new tank design and the Vickers was actually invented in ~1923)
The other designs are an impossibility for the purposes of real life, but better suit the story of 'Operation Zimmermann':
America had large numbers of FT-17s by the end of the real war, so it is easier for these to be upgraded than for America's industry to be re-geared towards Char tanks. And the FT-75 isn't holding a 75mm AT-type weapon, but an Artillery weapon that has been modified to work on the FT-17 chassis.
Self Propelled Artillery are just guns on trucks, but they are thought to be more easily transported than regular artillery peieces. They are never more than 105mm sized-weapons.
The 108 and 109 all-metal aircraft are exactly the same as those designed by Messerschmitt in the Spanish Civil War period. There were studies conducted in WWI to see if an all-metal aircraft could be applied to a bi-plane design, but clearly these aren't biplanes
. Anyway, a continent of research can provide much discovery.
The A7V's upgrade presents a more major problem - how can you get it across the Atlantic. The K-Wagen was going to weigh well over 100 tonnes, putting it in a category similar to that of the Maus. No landing craft could support one, and I very much doubt a heavy cruiser-sized ship could even hold more than one. Germany had around 40 dreadnaughts or pre-dreadnaught battleships, so that means a maximum of maybe 80 K-Wagens could realistically be placed on American soil (if the logistics were available) - and by WWI standards that is a tiny amount - 500 were needed to take 10km of ground at Cambrai!
The A11V provides a different solution. By changing the main armament of the main German tank (A7V), we are increasing its weight to perhaps 45t (from 33), which isn't too bad. It also is much easier to gear a factory towards the same design with a new gun, than a new design with the original gun.
France in WWI was pretty exhausted by the end of the war, and would have likely surrendered upon losing Paris - 1870 wasn't a huge war about colonies, and Hitler never discussed surrender with everyone (and there were no de Gaulles or Churchills making significant 'defiance' speeches in WWI). Plus, even if it hadn't surrendered after losing Paris, the fall of London would certainly shake things up a bit. France's colonies didn't have the same material wealth that England's did (France had 1/2 of the Sahara and a heap of jungle, plus a few scattered islands, Britain had Canada [with coal], India [with population and rubber, food and spices] and gold mines in Sth Africa). Even if they didn't surrender after this, they wouldn't have had anything to continue fighting with.
Finally, I would like to get the mod finished so that I can continue with the Rome project, but if a K-wagen or any other 1920-era units are uploaded I will certainly consider their addition
- BNC
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