Secondary mission capabilities include performing tactical airdrops of pararescue specialist teams, small bundles, zodiac watercraft, or four-wheel drive all-terrain vehicles; and providing direct assistance to a survivor in advance of the arrival of a recovery vehicle. Other capabilities are extended visual and electronic searches over land or water, tactical airborne radar approaches and unimproved airfield operations. A team of three Pararescuemen (PJ's), trained in emergency trauma medicine, harsh environment survival and assisted evasion techniques, is part of the basic mission crew complement.