Lets go one by one on the photos on that landing page in terms of minimum equipment and people behind them... short obviously of a camera and an achieved photographer, that is already hard enough to come by and expensive but is a common factor in all images.
Katana image: model, make up, big room with stupidly expensive lamps, costume, katana, watermelon, more than one 1k/2k+ flash head.
War image: ticket to war zone, bulletproof vest, AK-47, missile launcher, missile, model/combatant. Very likely many pro camera bodies, pro to resist dust, many to have spares. You won't find a pro body there if one breaks up, unless you can loot a dead photographer.
London image: helicopter, helicopter pilot, weather controlling machine (can be replaced by an insane amount of luck or many tries and a lot of time in each one).
Guy with car hat: model, car hat, not sure if only one flash head or camera mounted strobe. I'm not sure of how much a car hat costs but I think this is the cheapest photo of the lot.