To get this Achievement
you need to play Halo 2
on the 9th of ANY MONTH
so that's from - 9th January
Theses are the days you can get this Achievement.
Now to unlock this Achievement all you need to do is start up Halo: The Master Chief Collection
OVER TO HALO 2. Press
. NOW if you have a mission in progress you can just click RESUME
but if you don't you can click "MISSIONS
" and PICK any MISSION
you want. This can also be unlocked on "PROLOGUE
" now this Achievement can be unlocked on ANY DIFFICULTY
. You can also do this in a custom game instead of starting the Halo 2 campaign!