Wolfshanze, could you make a list of the ArtDefinesUnit (Or ethnic unit more likely) references to units you consider WWI style "Motorized Infantry" graphics, and those that would be more modern Information Age Mechanized Infantry?
Not sure I follow you here in regards to what you seek. I'd say 99.9% of the "Infantry" unit graphics in the Wolfshanze Mod are of the WWII-era variety. I have very few WWI-esk infantry units... Austria is about the only one off the top of my head that is deliberately patterned off a WWI uniform.
There are, however, many WWI-esk uniforms, but they mostly belong to the Machine-Gun units (most of my MG units are either late 1800s uniforms or WWI uniforms).
I know that you get the "Infantry" unit with WWI tech, but to be honest, the vast majority of those uniforms in the Wolfshanze Mod are WWII uniforms... much like you get Musketmen in the Renaissance, but most of the Musketman uniforms are from the 1700s.
It's just an "averaging-out" thing I do with uniforms that cover prolonged periods of time.
When I get-around to doing Motorized Infantry, I'll be using the EXISTING (WWII) Infantry graphics along-with their motorized transports... what will change is the Mechanized Infantry unit that comes much later, I'll be digging-up more modern (current-day) infantry graphics to go with the modern mechanized infantry vehicles.
The motorized transports will come with WWII techs, not the WWI techs, and while "Infantry" come with WWI techs, I'm perfectly happy/content at leaving them with WWII uniforms and leaving the WWI uniforms for the MGs.
If you feel a need for WWI uniforms, there's Snafu's WWI mod which already has the WWI infantry uniforms released, but I don't have any plans to go that route, at least not now (maybe I'll change my mind later, but I think there's enough work to do just converting to motorized infantry).
I've played through a couple games, and feel Artillery should not be a prereque for Assembly Line, but I can't do that without Motorized Infantry to smooth out the transition. The lateness of AL is bothering me quite a bit, and it also funnels the Tech Tree too much.
I consider the "Assembly Line" the main WWI tech which releases a flood of WWI units, from dreadnoughts to infantry and tanks. Whether you agree with it or not... modern Artillery was around long-before WWI occurred, and in-fact was used quite liberally in the age of Rifles such as during the Franco-Prussian war of 1870, some 40+ years before WWI... Artillery came-about long before WWI, and in-fact, is what made many things in WWI possible... saying Artillery is not a pre-req to WWI would be crazy IMHO.
The only thing I'm not 100% happy with is the factory building itself, which could (in-theory) be around well-before WWI (and before Artillery)... so if there was another path pursued, you could either say, move-up Assembly line and factories, but create a new tech for all WWI units (and have Artillery a pre-req for WWI tech/units), or create a new tech for factories and move that out of (and before) the WWI Assembly-Line tech.
I'm personally open to the thought of moving-up the Factory itself to an earlier tech or a new earlier tech (perhaps a pre-req to Rifles or something, which would prolong muskets/grenadiers), or creating a new tech for WWI units and move-back assembly line... but in EITHER CASE, Artillery MUST remain a pre-req to WWI technology/units... because that's simply how it was... artillery was around long-before WWI.