The quest is from Black Mesoranger in Omega Sector, available to all lvl 45 and above. The player is asked to collect one each of: Barnard Gray's Cell Zeta Gray's Cell Ultra Gray's Cell Chief Gray's Cell I've found that the Ultra Gray monsters incorrectly drop Zeta Gray's Cell and there doesn't seem to be a way to get Ultra Gray's Cell. I gave up after testing for quite a while and only getting Zeta Gray's Cell, but I guess it could be possible they do also drop Ultra Gray's Cell and I got really unlucky. From what I could find on the forum it doesn't look like this has been reported before, but in case this is a duplicate, sorry in advance. Cheers.
