Days Gone
61 Achievements
60-80h
Best Friends Forever (For Life)
Gain the Allied Trust status with three different Encampments
17.1%
How to unlock the Best Friends Forever (For Life) achievement in Days Gone - Definitive Guide
The easiest by far is Diamond Lake. This is because the rewards for for the missions down south are a lot higher. Also, when you save people down there, they tend to spawn in groups and can reward upto 2-4000Trust per rescue.
Iron Mike's will become your second, as the third act generates more trust missions for it.
My third one was Copelands, getting the last camp job done in the third act and a couple of horde takedowns and I got it.
Obviously, it's easier to get most of the camps to the max level postgame, mainly because the Hordes are so easy to destroy as you can raid every camp of their ammo and explosives before going out.
Trust Points can be earned for each camp by doing missions, side quests, delivering bounties, selling food at the correct vendors and by saving survivors and sending them to the camp. With each level you get access to better weapons and bike upgrades so it's well worth doing.
There are five camps:
Northern Region - Copeland's Camp, Hot Springs and Iron Mike's Camp
Southern Region - Diamond Lake and Wizard Island
You will need 25,000 points to reach level 3 and by the end of the game you should be very close to a lot of them. Clearing up hordes dependent on region can give you over 1,500 so concentrate on them. Hand in bounties afterwards to rank them up too.
And it’s better to immediately clear the infected zones and marauder camps. This will unlock a good weapon before you head south.