A quick reminder:
Historical accuracy is a huge topic in this forum. But actually, a solution was found in 2023 already. The devs themselves mentioned the solution for historical accuracy (as can be seen above).
Why was this plan canceled? It could have solved many problems…
Probably because historical accuracy is just a sweet marketing lie. Just like realism or “commanding” AI squad.
You don’t fully get what you would expect but it’s enough for marketing slogans to be technically true.
Though I guess in comparison to CoD vanguard Enlisted is actually a hardcore ultra realisric and ultra historical simulation 
But that’s just my biased and probably overly negative opinion.
Fans of purely historical battles will BE neglected
here, fixed it for ya.
as for why, it’s anyone’s guesses.
they dont have time, interest or they could genuinely do not know how to do that.
as it does require some check formula etc.
bro cod vanguard didnt give an ounce of F for historical accuracy i mean garand with drum mag? smg with some reflect sight thing? full auto VG 1-5? like that a really low bar when compare to enlisted (oh also i think there was time travel stg44 but idk i probably misremembering)
That trash of a game Vanguard even had T-34-85 from 1944 in a 1942 battle of Stalingrad!
Oh wait… 
These are all the more minor inaccuracies in vanguard… uh the thought of it makes me shiver, like lord how could you get so much wrong in one game???
mg 42s for japanese and type 11s for germans