Battlefield 1 is a first-person shooter that emphasizes teamwork. The game is set in the period of World War I, and is inspired by historic events. Players can make use of World War I weapons, including bolt-action rifles, automatic and semi-automatic rifles, artillery, flamethrowers, and mustard gas to combat opponents. Melee combat was reworked, with DICE introducing new melee weapons such as sabres, trench clubs, and shovels into the game. The game's multiplayer supports up to 64 players. The new squad system allows a group of players to enter and leave game servers together. Multiplayer maps are based on locations around the world, including Arabia, the Western Front, and the Alps.