Since I finished Atlantis S2-27 Hard (you do not need to finish no other S2 hard steps before!) I collect 20-28 recruits, 4650XP, +15000 ham, etc. … for 15 WE and one 1 loot ticket.
S2-27 needed a strange effort and I solved it only with +75+100+150+200 (!) gems, any of these gems but served already hundred times their value. You could be more lucky then this station will be your best farming place for things, you need.