The singleplayer features Codex Entries which require specific actions to be completed in order to unlock. Once obtained, Codexs give players insight over World War I history. Field Manuals are collectibles introduced and can be found throughout each war story. 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. Crates also feature Singleplayer exclusive variants of weapons such as suppressed sidearms.