Hey, everybody,
Do you also still have problems unlocking achivements on steam?
It’s impossible for me to get all achivements from the Reach campaign because they don’t unlock…
Does anyone have a real solution to solve this problem?
(I have already removed the host file etc… )
Are you playing online or offline for these? Might be worth opening a ticket with Halo Support or even Steam Support. Maybe both! 
when I play my steam is online
I just took a Gamepass subscription to see if the problem was steam, but not even playing with the Halo of the Gamepass nothing is working…