EA/Origin Access members get first crack at each release from the publisher, but don't always get full access to the title for that first trial. That looks to be the case with Battlefield 1 as well.
Today EA outlined the content being made available to subscribers on October 13, which includes five maps, four modes, and two of the single-player missions. EA/Origin Access members test to test out Rush, Operations, Domination, and the recently repaired Conquest mode on the St. Quentin Scar, Amiens, Sinai Desert, Fao Fortress and Suez maps. This will be our first look at Operations mode and the Amiens, Fao Fortress, and Suez maps.
The single-player missions are called "Storm of Steel" and "Through Mud and Blood."
Subscribers only get 10 hours with this content, but all progression carries over when the full game launches on October 21 (or October 18 if you buy the $80 Early Enlisters Edition). Participating in the EA Access nets you a Trench Raider dog tag, and if you max out your 10 hours a Battlepack will be waiting for you on launch day.