The achievement itself is pretty self-explanatory so this isn't much of a guide.
Just a reminder for those who is playing online cross-progressing on multiplatform. You will have to activate all waypoints in one playthrough of one character on console.
If you activate one or two waypoints on PC then go back continue playing this character, you won't unlock the achievement in this playthru.
[Edit] If the progression is glitched or you've activated a few waypoints on other platform, wrap to each one of them and then the achievement shall be unlocked.
Credit to NrV XeNoN and John McLarren