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.
Complete chapter 4.
Smash two striders with shipping containers.
Complete chapter 3.
Reunite two little gnomes.
Find all journals.
Find and decode all qr codes.
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.