Sherman 76mm Unlock	→	M36 Jackson Unlock	→	Pershing Unlock	→	Pershing Ace Dispatch
↓		↓
HVSS Unlock		Dispatch Tank Hunter Squad		Fuel Dispatch		M20 Command Vehicle Unlock
↓		↓		↓		↓
Armored Infantry Support		Calliope Unlock		Production Speed		Cavalry Recon Squadron
↓				↓		↓
Task Force Abrams		Withdraw & Refit		American War Machine		M-20 Ordnance Upgrade

Death_Kitty’s Guide to the US Armored Division