The “Thanks for the advice” achievement on “The Dig” mission says to complete the mission without killing any Units with the laser drill.
The problem is that you can’t do this achievement if you want to complete the mission with bonus objectives because you have to use the laser to destroy the shrines.
Why I think this is a bug. Well, the shrines don’t have the “Unit” attribute and secondly, after you kill the shrines, the laser drill kills counter is still 0.
If this is how the achievement is designed, this is very bad design.
I started a new campaign trying to complete the new achievements along the way, with bonus objectives of course, but for now seems like this is not possible, at least of this mission.