Adds 8 (15 counting variations) new turrets for dealing with alien menace, as well as other military-related items. Good compliment to mods that add new biter types, like Rampant or Natural Evolution.
No turrets from this mod interact with the Arachnids eggs (which appear as a drone).
Maybe interact with the Rampant creator on that topic. I don't know about what he said. Sorry.
<EDIT> Can't replicate. Downloaded latest Rampant Fixed, turrets engage and hit arachnid faction eggs normally. Must be another mod you're running that breaks things.