Easiest way to destroy an alien nest [OBSOLETE]

Overview

In this tiny guide, I will explain you the easiest way to destroy an alien nest. Beginning or not, the alien won’t hurt you in any ways, but keep in mind Miasma is still a problem.

Step after step

The first thing you want to do is to gain ONE purity level, doesn’t matter if you aren’t going for that victory, it’s quite easy to get. The reason you want this one level is because when you are level one, it will give you this bonus: “Aliens will not attack tiles with Explorer Units”.
A good combination will be having that level AND alien nest radars, you can also research planetary survey so you can embark into water tiles.

So what this does, is that you can lead your explorer into their territory without them attacking you. They will not be aggressive even if you clear out the nest, this is so easy that if you have some virtue bonus when cleaning them out, you will easily get those bonuses up.