The Call of Duty: Ghosts campaign, while linear, contains several subtle Easter eggs and expands on its unique lore. The most prominent lore elements are found through collecting the Rorke Files, which provide deeper insights into Rorke's past and the Federation's motivations. Keep an eye out for environmental storytelling, such as propaganda posters or destroyed landmarks that hint at the world's state. One notable Easter egg involves a brief appearance of the 'Nuketown' map in a destroyed state during the 'Federation Day' mission, visible through a window. Another subtle nod is the presence of a 'Ghost' mask in various locations, sometimes worn by mannequins or found as props. While not game-changing, these details add depth and a sense of continuity to the Call of Duty universe. Exploring off the beaten path can sometimes reveal these hidden gems.
