Field Manuals are collectibles introduced and can be found throughout each war story. Once obtained, Codexs give players insight over World War I history.

The singleplayer features Codex Entries which require specific actions to be completed in order to unlock. Unlike past installments, the story offers a much larger sandbox to allow players more choice and variety in how they approach different situations. The singleplayer campaign of Battlefield 1 takes place during World War 1 across six different 'War Stories' which revolve around different people in different aspects of the Great War in campaigns such as the Italian Alps and the deserts of Arabia. Chemical weapons like Gas Grenades, which were used extensively during World War I, are also present and can be countered by the vision-obscuring Gas Mask. Due to the prevalence of trench warfare during World War I, melee combat features an increased focus from past installments.

Armored cavalry-soldiers on horseback-will also make a first appearance. While many elements from past installments return, Battlefield 1 presents vehicles in a much more prominent role than commonly seen in WWI settings, featuring first-generation tanks, bi- and triplanes, and airships.

Battlefield 1 soundtrack