We already know what happened, the game got review bombed for the DS and it wasnt nerfed. So Leopards ate our faces. Yay.
They are the person who did the main layout, maybe also placement of some assets:
I assume after this process a few others come in and do other things like pathing for players and enemies, spawns, cover and invisible walls etc, there will be lighting, sound, bug testing and probably other stuff that I cant think of.