As mentioned in chapter 1's intro, chapter 3 is meant for higher end players to complete. Difficulty wise, the first two maps of chapter 3 are about the same  as chapter 2, however at 3-3, you'll have a large spike in difficulty. The upside is, 3-3 and 3-4 are both day maps, so you won't need to worry about night vision. 

No changes from 2-3 and earlier going into this stage. 

Base chance of great success is (Average Echelon level * 0.45)+15

As with 2-2, nothing's changed from 2-1's post about my echelons.

So, as with chapter one of arctic, a significant amount of time has passed since I wrote anything for a guide. Since the KR/CN event Continuum Turbulance came out, I had to do some significant upgrading to what I had available. Because of this, I'm significantly stronger now, so it's a little hard to get a more objective look at the content's actual difficulty.

Since I can't delevel T-Dolls, I'm forced to limit myself to accomplish this. The limits I'm placing are: Unenhanced green gear only, no modded T-Dolls (Namely STAR-15 and M4A1), and no fairies. This should be enough to give some idea of how strong some things are going to be for the typical EN player. 

Daily Missions- As the name suggest, these are the missions that we are tasked to accomplish on a daily basis.

First off, this is primarily made from the Korean sources on Namu Wiki for GFL, which frankly, is a better resource if you can actually read Korean. Their notes are much more complete, and most of this is based on their work. With that out of the way, let's get down to business.

Rifle/Handgun echelons are mainly used to fight armoured enemies, especially at night; though they can be occasionally useful for other enemies as well, you'll mostly leave those to AR/SMG echelons.

This question gets asked a lot, so once again, it's canned response time. I swear, I write more of these than actual guides.