Their shots seem to be pretty difficult to dodge, and the fact that they go through natural terrain makes me wary of going deep enough to keep encountering them.
Do Structures block their shots? I've already built out of stone bricks a...wiggly tower...enclosed staircase...thing...for moving down from my initial base. Would something like that keep me safe from their shots?
My armor may not be up to snuff either, since it's just Aluminum. I think I have the resources to make Titanium by now, surely, but I don't have anything past that except for 1 piece of Outlander set.