You can find the latest user made theaters from
PMC Tactical forum Falcon 4 areas.
Vietnam
Operation Desert Storm
Nevada
Korea 128
Europe
Afghanistan
Taiwan
Libya
Iran
Georgia
Kurile
You have to dig somewhat deep into our forums to find all the installers, but they are there
Also anyone interested in OFP, ArmA, ArmA 2 or Falcon 4 editing can check out
PMC Editing Wiki.