Units

Tier 1 units

 * Squirrels aka The Distillery Brothers
 * Lizards aka The Nomads of the North
 * Toads aka The Morning Light Croakers
 * Pigeons aka The Volunteers
 * Moles aka Engineers for Hire

Tier 2 units

 * Ferrets aka The Freight Union
 * Chameleons aka The Trench Gang
 * Falcons aka The Wing Demons
 * Skunks aka The Glorious AFB
 * Snakes aka The Tooth Collectors

Tier 3 units

 * Badger aka Inmate #43B
 * Boar aka Uncle Butters
 * Fox aka Kasha, the Farmhand
 * Owl aka The Matriarch and the Wretches
 * Wolf aka Drill Sergeant Volkov

Unique

 * Pigs aka Fat Boris (These harvest from the farms)
 * Zombie Mice (Spawned from the Owl)