Did you move to Master Chief Collection or went back to 360 games?
Yes. In fact, my friends and I are having an MCC “LAN” party on December 12th.
I’m completing Halo 5 campaign on legendary. Every once and a while going back to MCC to finish completing the achievements.
Tried, but most populations are so low that you can’t find ranked games.
once reach is back compat im going to that