Maintenance for the week of December 23:
• NA megaservers for maintenance – December 23, 4:00AM EST (9:00 UTC) - 9:00AM EST (14:00 UTC)
• EU megaservers for maintenance – December 23, 9:00 UTC (4:00AM EST) - 14:00 UTC (9:00AM EST)
I'd love those, in fact with AWA there's no reason they can't at least add Steam achievements and link them with your Xbox account like we have in Halo MCC and Gears 5.