What Made Battlefield 1 Special

Battlefield 1 is eight years old, which is absolutely insane to think about. The last great installment in the Battlefield franchise, Battlefield 1 was the game I spent the most time on in 2016 and 2017. Spanning throughout several periods in WW1, the game fleshed out and expanded upon the scale established in Battlefield 3 and 4.
Chapters:
Intro 0:16
Classes 1:54
Attachments 7:46
Conclusions 11:13
Sources, in no particular order:
Planes: Just4kgaming
Tanks: Tiger
Cavalry: Synchrotron 2
M1909, Gewher 98: Foddeur
Madsen MG, BAR M1918, M97: KriticalKris
Cei Rigotti, Selbladder, Mondragon, MP 18, SMLE MK III: Ferg96
Model 10A: Stodeh
Automatico M1918: TheRushot
Russian 1895: Ravic
M1903: Kmancometh
Martini Henry: jackfrags