During the single-player campaign, the player controls six different characters from a first-person perspective. The player assumes the role of recent British Special Air Service (SAS) recruit Sergeant John “Soap” MacTavish for most of the game, starting with his enrollment in the 22nd SAS Regiment. Sergeant Paul Jackson is part of USMC 1st Force Recon deployed to the Middle East, and the player controls Jackson’s character during five levels of Act 1. Captain John Price (voiced by actor Billy Murray) is an SAS officer who is playable in two flashback missions from 1996 in which he is still Lieutenant. The player also assumes the role of an American thermal-imaging TV operator aboard a Lockheed AC-130 gunship during one level, and a British SAS operative infiltrating a hijacked airliner to save a VIP in a secret level titled “Mile High Club”. Finally, the player may control Yasir Al-Fulani, the president of an unnamed Middle Eastern country in the game before he is executed, although he has no freedom of action beyond turning his head.