New Empires Campaign!

http://www.totalwar.com/empire/campaigns/index.php?t=EnglishUK

Quote :

The Warpath Campaign Expansion is only available through Steam. Check the Downloadable Content page on Steam to purchase and unlock the new campaign and all 5 new American Indian factions. These factions can be played in single player and multiplayer games.

A new detailed North American Campaign Map expands the Empire: Total War experience, with 5 brand new American Indian factions, new units and technologies. Experience battles in the new Warpath Campaign and lead one of the 5 new factions in an epic war to defend your lands and drive out the invaders. Or take these units and their unique strengths into multiplayer battles.

Key Features5 New Playable Factions Play through the new Warpath Campaign or in multiplayer as one of 5 new American Indian factions in Empire: Total War, including the Iroquois, Huron, Plains, Pueblo and Cherokee nations. Expanded North American Territories A new, more detailed North American Campaign Map featuring new regions and a new start date. New Elite Units Command new Elite units specific to each American Indian faction including Mohawk Elite Warriors, Cheyenne Dog Soldiers, Navajo Scout Warriors and many more. Shaman and Scout Agents Two new agent types - Infiltrate enemy territory with the new Shaman unit and sabotage the opposition with the cunning Scout. New Tribal Technologies 18 new tribal technologies including Spirit Medicine, the Call of the Wild and Dreamwalking creating a brand new tribal technology tree. New Objectives New winning objectives for each of the playable factions.

Warpath is out today and you can buy the special forces/bonus units. So I did.

Quote :

The official Empire: Total War expansion, Empire: Total War - The Warpath Campaign is now available on Steam.
Voyage to North America to explore the new campaign map which expands the Empire: Total War experience, with 5 brand new American Indian factions, new units and technologies. Experience battles in the new Warpath Campaign and lead one of the five new factions in an epic war to defend your lands and drive out the invaders. Or, take these units and their unique strengths into multiplayer battles.

Also released today for sale separately is the Special Forces Units & Bonus Content DLC, which includes the six units from the Special Forces Edition of Empire: Total War, plus three additional units previously unavailable for sale, including Death's Head Hussars, The USS Constitution and the Dahomey Amazons.