Through Mud and Blood is the second mission in the singleplayer campaign. Afterwards, the player swaps into the next soldier. The character's names are random for each playthrough and their dates of birth briefly appear following their death.

The mission is unique in that the player controls several different soldiers over the course of the mission, all of whom (excluding the final unnamed soldier) eventually die during combat. Serving as a prologue to the war stories, the mission takes place in 1918 somewhere on the Western Front, as the American 369th Infantry Regiment, as well as their French and British allies, make a desperate last stand against an onslaught of Imperial German Army forces. Storm of Steel is the first mission featured in the singleplayer campaign. Crates also feature Singleplayer exclusive variants of weapons such as suppressed sidearms. Weapon Crates also return, featuring a variety of weaponry and gadgets that can greatly affect gameplay by allowing players to change tactics depending on the situation. 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 revolution