Well, if you're sent by Getty Images, the standard issue kit contains: two Nikon D3ses, 24-70mm lens, 400mm lens, 500/600mm lens, 1.4x teleconverter, batteries and memory cards. And you get to haul all that up a mountain!
Basically, all of this stuff, plus two of those giant cameras up there. But on top of all the layers of clothing you have to wear, and you have to stand in place for hours and hours. What a blast! [Pocket Lint]