Some big changes are taking place at Infinity Ward, the studio behind Modern Warfare. Details are still coming in, but it appears that at least one of the studio heads, Jason West, has been fired by the studio's owner Activision. Apparently Activision filed a human resources investigation into "breaches of contract and insubordination by two senior employees at Infinity Ward," adding that the "matter is expected to involve the departure of key personnel and litigation." It is still unclear as to who the second senior employee is.