Pavillion

Trains agents and mercenaries.

Agents

 * Spy
 * Assassin

Mercenaries
Here is where the fun starts.

Chinese

 * Renegade Chinese Warlord
 * Renegade Chinese Footmen (Ge-armed)

(Xirong???)
Clad in skins and unbound hair. Trained by Zhou and Shang. Xirong are most likely to be javelineers, archers and horsemen.
 * Xirong Skirmishers
 * Xirong Archers
 * Xirong Raiders

Man
A different sort of barbarian, but more sophisticated and only available late-game. Available only to Bach Viet and Zhou.
 * Man Warriors (they fight as heavy infantry) [2]
 * Man Rangers (they fight as archer cav) [2]
 * Sino-Man Crossbowman [3]