Here is the full list of all 11 Transmissions: Element 120 achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Find all journals.
Complete chapter 4.
Smash two striders with shipping containers.
Reunite two little gnomes.
Find and decode all qr codes.
Complete chapter 3.
Cut a zombie in half with a large object.
Complete chapter 2.
Find a way to get the magnum revolver.
Use a special weapon to gravity jump.
Complete chapter 1.