-Start OpenIV
-Make sure you have a modified gameconfig.xml that could handle add-on vehicles with no problem, if you have a modified gameconfig installed, skip this step
-Put the "patriotclassic" folder on update/x64/dlcpacks/
-Click Edit Mode, then go to update.rpf/common/data and find dlclist.xml
-Extract and edit the dlclist.xml
-Copy this line:
		<Item>dlcpacks:/patriotclassic/</Item>
-Save it and drag and drop the dlclist.xml to update.rpf/common/data/
-After following the whole step, start the game
-Model name: - patriotc
