For me it’s easily refining liquid morkite. It takes forever. I swear half the team is off staring at a wall while you get the pipes built. Lastly, I can’t quite out my finger on it, but the refining portion feels so scripted and boring…Every other mission type is a blast.
I was just playing a long ass drill mission and the host quit at the end! Ok, maybe I dislike this one the most lol. I’m taking a slow relaxed approach to the refining missions and it isn’t too bad I guess.