The Age of Conquest/Persians/Tech Tree

Faction Overview	/Strategic Overview/	/Tech Tree/
===Unique units===
*Cavalry guard [1] => Scots Greys [2] => Royal Scots Greys [3] (as good as French cavalry but with a high pricetag)
*Victoria [2-3]
*Longbowmen [1] => Rangers [2] => Green Jackets [3] (skirmishers, upgrades to line infantry. The Longbowman has an enhanced rate of fire but is costly, while Highlanders are so tough they can make for line infantry. The ultimate upgrade, the Green Jackets are on par with Native Americans, with the ability to move stealthed and with no min range, but are costly) => Black Brunswick Fusiliers? [3]
*Redcoats [2] => Regimental Redcoats [3] (line infantry, dressed in the traditional red garb, with good damage and armour, and like the longbow, with a withering rate of fire that causes lesser mortals to melt...but a compensatory pricetag)
*Foot Guards [2] => Grenadier Guards [3], Royal Marines [?] (a vastly superior grenadier with a higher pricetag. Grenadiers are as good as the Royal Musketeers, although by [3] the line infantry line will lose minimum range)
*Black Watch [3 & 4] => Gordon's Highlanders [5] Excellent, all-rounder infantry - can't entrench like Marine units, but grants a balance between the power of grenadiers/marines, the range of snipers/marksmen and the cost of line infantry.
*Yacht [1] cheap and strong light vessel of the Colonial Era.
*Rocket ship [3] shared with India, fires rockets that set ships on fire. Replaces anti-ship units.
====Auxiliaries====
* [1] Greek Stradiot
* [1] Privateer - upgradeable to Garde Écossaise [2], with Liberalism
* [2] Hessian cavalry
* [3] Sepoys - upgradeable to Presidential Guard [4], with Democracy
* [3] Black Watch - upgrade of Garde écossaise, with Absolutism
* [4] Mercenary Sowar 
* [5] Gurkha Rifles 
* [5] Tankette 
* [5] Gordon's Highlanders - upgrade of Black Watch, with New Course
===Unique buildings===
*Academy - trains your elite units
*Cathedral - performs taxation and religion research, and is the main stopping point for your auxiliary units as well as chaplains, which have mediocre attack, but super defensive and defence-boosting skills