Whirlwinds

The Whirlwind is an Imperial artillery support vehicle based upon the Standard Template Construct (STC) Rhino armoured personnel carrier (APC) chassis that is now primarily used by the Space Marine Chapters of the Adeptus Astartes. The Whirlwind, whose standard pattern is known as the Whirlwind Helios, plays the role of artillery support, providing support fire on enemy formations from the relative safety of geographical cover, such as behind hills, forests or other line-of-sight obstructions. It is intended to be used primarily for softening up a heavily-fortified static position or other well-defended target prior to the start of a major Space Marine assault.