Battlefield 1 is supposed to be getting a single-player campaign trailer today, but an ESRB decription about the game has popped up online detailing some of the things players can expect in the game.
In giving the game an M rating, the ESRB offered the following description about the WWI first-person shooter's campaign: "As players progress through the storyline, they assume the roles of fighter pilot, armor crewman, rebel fighter, and message runner in order to complete missions. Characters use rifles, pistols, machine guns, and grenades to kill enemy soldiers in frenetic, realistic combat. Battles are highlighted by frequent gunfire, cries of pain, and explosions. Some sequences depict enemies wielding flamethrowers; soldiers can be heard screaming while engulfed in flames. Players can also use knives or bayonets to stab enemies in stealth attacks. Splashes of blood can be seen when enemies are hit; one sequence depicts blood and corpses on a beach after a battle. The word “f**k” appears in the dialogue."
So, if the trailer today is indeed indicative of what will be in the game, we can expect to see some cockpit and tank POV to go with the horseback riding and hand-to-hand trench warfare. I doubt we will hear the word f**k however, given that these trailers need to be rated for everyone (or have an age gate).