PAP Pieces - First go to the Rocket Pad through the teleporter and find the spot up there where there will be and option to teleport PAP pieces. Now either go to the Bastion or the Undercroft and the parts will be at one of them. The Bastion is above the courtyard up some stairs. The Undercroft is in the pyramid area but not in the actual pyramid room, it is on the other side of the wall you can walk around. Once you did your second one go to the third location and it should be built there and you can use it. every round or every few rounds the machine will move to the other two locations.