As for blue fog, no that doesn't seem right, can you upload a save, preferably just before the blue fog appears.
Edit: dml updated, blue fog should no longer appear.
zajazd on 17/6/2023 at 10:24 I had quit this mission on first try years ago but now gave it another chance and glad I did, it is like Bonehoard lite but with originality here and there, overall very enjoyable mission.