Call of Duty 4: Modern Warfare differs from previous installments of the Call of Duty series. Previous Call of Duty games have a distinct three country-specific campaign style, while Call of Duty 4 has a more film-like plot with interlaced story lines from the perspectives of Sgt. Paul Jackson of the Marines 1st Force Recon and Sgt. 'Soap' MacTavish of the British 22nd SAS Regiment. This limited collector's edition includes: - Call of Duty 4: Modern Warfare - Bonus DVD with making-of scenes, a documentary of the British S.A.S., a level walk-through by the developer, and some campaign trailers. (Europe-only) - Poster featuring the cover art of the game. - Hardcover art book narrated by the developers and artists, with concept, development and final in-game artwork. (Xbox 360 & European Windows-only) - Digital copy of the Brady Games official strategy guide (Windows-only)