This fourth volume in the Field Manual series describes the fearsome Crusader Clans, who seek to conquer the Inner Sphere and force the Way of the Clans on all of humanity. This sourcebook brings the once-powerful Clans Jade Falcon and Wolf up to date and also unveils five new Crusader Clans-Blood Spirit, Fire Mandrill, Hell's Horses, Ice Hellion and Star Adder. The entire military force of each Clan is described in rich detail, from the largest Galaxy to the smallest Binary, along with tactics, military doctrine and traditions unique to each Clan. Full-color renderings of each Clan's uniforms and insignias are included.