Jared Padalecki (Sam Winchester) dislocated his shoulder while wrestling with Osric Chau (Kevin Tran). The writers were then forced to make up a story as to why Sam was wearing a sling in the beginning of season ten. None of the cast or crew members ever expected the show to last as long as it had.

Sam's supernatural abilities are the result of him being fed Azazel's demon blood while he was an infant. Sam exhibits signs of precognition throughout the first season, manifesting as dreams of others' deaths and later as visions.

However, players still had Makarov to deal with. He's basically the ultimate villain of the original Modern Warfare trilogy. Makarov's dark deeds are held as some of the darkest things a villain has ever done in a Call of Duty game.

The player mainly controls British Special Air Service (SAS) recruit Sergeant John "Soap" MacTavish, starting with his enrollment in the 22nd SAS Regiment.