Thanks Juku121. I thought I had captured enough aliens since I had at least one of each (maybe not from each species, but I've got Navigators, Soldiers, Medics, Engineers, Leaders from a couple of the different races.) I even captured one commander (a sectoid) by ganging up on him with five guys with stun batons in an Alien Base Raid. However, I haven't seen any of the really elite units yet like Knights, Guards or Keepers. I guess I just have to keep beating up aliens with stun batons until somebody talks...
I also have no idea what I need to do to unlock improved laboratory...I thought I got all the topics I needed to do it, but I've researched so many things at this point that I don't know. RNG has also messed with me pretty hard on this campaign since some enemies never appeared that I needed to capture. Didn't even see a zombie infector until March of 99' and I haven't even seen a shambler once the entire campaign and since I already did final solution I doubt I'll ever unlock hidden caves...
By the way...does the game automatically end if you attack Cydonia? Even if you haven't finished all of the other faction quests? I've wiped every cult except apocalypse, and I've destroyed the syndicate, cyberweb, and the monsters too. I'm decently far along on the Hybrids (I captured a specialist so now I'm waiting for the control mission to fire), and UAC, but I've barely dipped my toe in everything else. I would like to experience everything the mod has to offer so it would suck if I finish the campaign before I wipe all the other factions out.