Grav Shield
General Information
A Grav Shield doubles the potency of your offensive Base Defense Measures, allowing each one to fire twice against an attacking UFO.
Edit by gh0st3000: Extra Grav shields CAN extend your defenses, The amount of hits is: Number of Defenses x Number of Grav shields
When a battlefield attacks the base, the message will just repel the battleship and fire again depending on how many grav shields you have
Statistics
Construction Time: 38 days
Construction Cost: $1,200,000
Maintenance Cost: $15,000/month