This game is rated ESRB: Teen for Violence and Animated Violence.
In August 2002, Microsoft released two add-ons to MechWarrior 4: Vengeance: Clan 'Mech Pak and Inner Sphere 'Mech Pak. Each pack contained four new BattleMechs and a few other bonuses, such as new weapons. Inner Sphere Mech Pak includes: - Dragon - Highlander - Hunchback - Zeus
