Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Best defence i could find with just a line of turrets mixing tesla with railgun turrets for late game Gleba. The blueprint uses common rarity turrets. In the video i showcase it against a line of tesla turrets alone and they fail badly in the exact same situation.
https://www.youtube.com/watch?v=alfypC-UP6U