I know, I am late to the BF1 hype train. However, I did not want to post the trailer without any context or bonus stuff. Since TAP isn’t limited to WW2 (everyone knows when the first tanks were built), I will leave you this very good video. WW1 was after all the war that gave birth to many Eastern European nations (including giving mine proper borders) but I find the 1918-1922 period just as interesting (Russian Civil War, peace treaties, border changes, and Chinese/Mexican civil wars).
Note: The mask of the armored soldier is called the “Sappenpanzer Gesichtsmaske” which was a rare piece of armor issued to snipers and machine gunners. Due to the weight of the mask, it was only issued to soldiers in fixed positions. Even in the trailer you don’t see the armored soldier moving around. He’s stationary, shooting what seems to be a Maxim machine gun.