Sub Pen

General Information

The Sub Pen is a 2x2 Base Facility. You require one Sub Pen for every Flying Sub you own or are in the process of constructing.

The Sub Pen serves as an access point for encroaching alien forces. The Sub Pen cannot be destroyed during a Base Defense mission.

Construction Time: 25 days
Construction Cost: $200,000
Maintenance Cost: $25,000/month

Terror From The Deep
Base Facilities:	Air-Lock • Living Quarters • Laboratory • Workshop • General Stores • Alien Containment
	Sub Pen • Standard Sonar • Wide Array Sonar • Torpedo Defences • M.C.-Lab • Transmission Resolver
	Gauss Defences • Sonic Defences • P.W.T. Defences • M.C. Generator • Bombardment Shield