Hello there!
During my first playthrough I managed to beat the game with one Deadnaut left, randomly clicking and checking, with no knowledge about threats (well, maybe my deadnaughts had knowledge, but i did not read it :P ). Then, after few more hours of playing I realised how lucky I was. I had only missions about finding the ship's log or destroy all aliens. No sentinels, no artifacts to destroy. Easy :-)

Now i believe that missions about destroying all artifacts are most annoying. Usually there is an artifact or two in an almost destroyed room, and somehow I'm not able to use field properly, which means that my folks die quickly. Really hard times for me.

Maybe you have any advice how to deal with this kind of situation? 15% of room durability and three artifact to destroy.

Ice traps in the higher integrity rooms next door. While the zurg are frozen take out the artifacts

Melee weapons also help or/and getting point blank to the artifact.