I play when I have time, which nowadays seems less and less
I legit thought you had to pay for the campaign part and the multi-player was only free lol
100% done Halo Infinite until the Elimination game mode is added in.
How long did this achievement take you to get ?
2 other comments
It's a bit of a grind, if you have the premium battle pass you'll get additional challenge swaps and 2x XP boosts. I mainly would do my daily 6 bonus matches...
...with a 2x XP boost active to get a minimum 3 Battle Pass levels each day. I would say with grinding out the challenges with said boosts, roughly 40- hours!
Access your first Spartan Audio Log. - Halo Infinite
Access your first Banished Audio Log. - Halo Infinite
Lost, and found. - Halo Infinite