There's always room for discussion, but perhaps this previous topic found through the search function will answer your inquiry.
Battlefield 1 Trailer Accuracy
In Battlefield 1 there are biplanes with tank cannons attached underneath described as tankhunters did these really exist?
In Battlefield 1 the military phonetic alphabet is quite a bit differnt as we know it today (Apples instead of Alpha, Butter instead of Bravo, etc). When was it changed into what it is today? Why was it changed? Or does Battlefield's version have no basis on historical reality?
How accurate is battlefield 1?