The drops are random. If you can use the loot that drops for yourself and it is an upgrade you press the need button. If it isn't, you either pass or click greed, since there are probably others who need it. You will have to run them a lot if you want to get all the gear you need.
Thank you. Yes i got the need/greed thing figured out. Those drops i got for others becuse( nobody wanted/ my mistake) and i took em. I now know that these do me nothing so ill pass.
Thank u for clearing me up about the randomness.