Teleporters - Once you spawn in go over to the teleporter and use it. Now follow all the indicated hints on screen until you reach a broken teleporter. Now go into the four buildings that it tells you go in and find one part in each building. Once you have all four repair they teleport and use it.
Pack-a-punch - Once you have used the teleported go to the back of the room and kill the Abomination that spawns. Now use the teleporter and interact with the button with the indicated hints on screen the door to pack-a-punch will open.