To install this scenery package, follow the below instructions.

Step 1-Models

Open the folder 'Models' included in this package. Copy and paste all of it's contents into Flightgear/data/Models/Military/

Once this is done, continue to step 2.

Step 2-Scenery

Open the folder 'Scenery' included in this package. Copy and paste it's contents into Flightgear/data/Scenery/Objects/w130n30/w123n37/

Congratulations, you are done. Next time you boot up flightgear, you will see 2 Nike Hercules Launch Sites, and 1 USAF Radar Installation located West of the Golden Gate Bridge, on the coast near the USS Nimitz.