Supply Pads form the backbone of many UNSC bases, and are crucial to the smooth operation of any base. They not only provide access to the underground assembly and storage areas of the base, but also everything from medical kits to full-sized Warthog engines. The crew of a well run supply pad knows that a working pad means a working base. Supply pads are supported by D82-EST Darter dropships. The Supply Pad can be upgraded to a Heavy Supply Pad, which greatly increases resource production.