Days Gone
61 Achievements
60-80h
Infestation Exterminator
Complete the Infestation Exterminator storyline
17.3%
How to unlock the Infestation Exterminator achievement in Days Gone - Definitive Guide
It's wise to stock up on ammo before heading out, take lots of explosives and make sure you have saddle ammo sacks (The second upgrade at least.) Sometimes a Horde is attracted by the fires and the gunshots of killing the enemies pouring out the nest as it burns. Which is why it's best to take explosives and later on you can set up perimeter's using land mines if you don't fancy being caught out.
The last set are Crier nests and appear as an "optional" objective. You can get away with using one molotov on some of these. Where two are on adjacent branches, hit one of the as close to the tree trunk as possible. Hitting the trunk can often result in nothing being set on fire.
Crier nests appear only in The Southern Regions (Highway 79 and Crater).
Freakers build nests to sleep in during the day. They are marked on your map by a large red area until you are close enough and get an infested icon. There are 13 infected areas in the game, each one with multiple nests that vary in number You need fire to clear a nest so either throw a Molotov at it or use the incendiary bolts from the crossbow (my preferred method because it saves on crafting material).
When you get to the southern region there will be crow nests, which are infected crows that are called Criers. The nests will be in trees in numbers so make sure you hit all of them before they count. They are also found on top of poles which are always single so are easier to deal with. The crows are a pain, dodge and move forward. Don't bother trying to kill them.