Fans of both this movie and Modern Warfare 2 will recognize the voice of Soap MacTavish. And, as might be expected from someone this badass, Cooper is the only one to survive till the end of the movie.
Killzone fans will recognize Sarge to be Colonels Hakha and Radec, who are both strangely the two most popular characters in that series by far.
What Could Have Been: Jason Statham was originally cast as Cooper, but dropped out of the production to do The Transporter instead. In addition, a sequel was planned, Fresh Meat, seeing Cooper encountering the American team his section was to have exercises with, as more werewolves emerge.