A category of weapon target in the Command model.
A Submarine is a vessel that may navigate and fight underwater as well as above water. Different designs have different amounts of underwater endurance.
Command uses the weapon target types to determine if a particular weapon and sensor system can engage a particular target. For example, targets on land will often require different sensors and processing than targets on water. And, mobile targets will require terminal sensors and guidance to bring the warhead to the target.
Command distinguishes the weapon target types into:
Aircraft Helicopter Missile Submarine Surface Vessel Land Structure - Soft Land Structure - Hardened Mobile Target - Soft Mobile Target - Hardened