John Black's Mercenaries/Tree

In general John Black's Mercenaries are very similar to the Germans with one key exception, they do not have access to the Imperial Age.

Town Center
Units Upgrades
 * Settler
 * Colonial Age -> Fortress Age -> Industrial Age

House
No units or upgrades are available.

Market
Upgrades
 * Hunting Dogs -> Steel Traps
 * Gang Saw -> Log Flume -> Circular Saw
 * Placer Mines -> Amalgamation
 * Blunderbuss
 * Great Coat

Mill
Upgrades
 * Seed Drill -> Artificial Fertilizer

Livestock Pen
Upgrades
 * Selective Breeding

Dock
Units Upgrades
 * Fishing Boat
 * Caravel
 * Galleon
 * Frigate
 * Monitor
 * Gill Nets -> Long Lines
 * Armor Plating
 * Carronade -> Percussion Lock
 * Ship's Howitzers

Outpost
Upgrades
 * Frontier Outpost -> Fortified Outpost

Wall
Upgrades
 * Bastion

Church
Units Upgrades Mission Fervor Town Watch Gas Lighting Mercantilism Standing Army Mass Cavalry]]
 * Missionary
 * Spy
 * [[Church#Improvements|Bastion
 * After receiving "Royal Decree to Claim the New World":
 * Indian Friendship (Fortress Age, ): +25% all native american warrior hitpoints.
 * Customized Merc Weapons (Fortress Age): +30% all damage from Home City Mercenaries, while all buildings cost +30% coin, wood and food.

Barracks
Units Upgrades
 * Crossbowman
 * Pikeman
 * Musketeer
 * Halberdier
 * Skirmisher
 * Veteran and Guard Infantry

Stable
Units Upgrades
 * Uhlan
 * War Wagon
 * Veteran and Guard Cavalry

Artillery Foundry
Units Upgrades
 * Grenadier
 * Falconet
 * Culverin
 * Mortar
 * Upgraded Artillery

Arsenal
Upgrades Infantry Breastplate Socket Bayonet]] Ranged Cavalry Caracole]] Heated Shot]]
 * [[Arsenal#Infantry|Counter Infantry Rifling
 * [[Arsenal#Cavalry|Cavalry Cuirass
 * [[Arsenal#Artillery|Gunner's Quadrant

Plantation
Upgrades
 * Bookkeeping -> Homesteading -> Refineries