A Christian Arab (e.g. a direct descendant of Crusader Knights) Army Ranger with the U.S. arsenal in his holster. If this isn't the Muslim world's worst possible nightmare I really don't know what is.
A Christian Arab (e.g. a direct descendant of Crusader Knights) What makes you think that? Christians were populous in the Middle East long before the Crusaders came - especially in Lebanon, Syria, and Iraq.