The end of Halo 2 PC's Online Services
Seems I only ever bring the bad news these days.
In yesterday's Halo Bulletin, bsangel announced the end date of Halo 2's Online service as February 15th. After that date, multiplayer games will strictly have to be played over LAN.
"We’ve been monitoring the population for months, and it’s been peaking consistently at approximately 20 players or less." says bsangel.
So if you have Halo 2 for PC and have been putting off those multiplayer achievements, now would be a really good time to arrange a Weekend Hunt to unlock them before they're gone forever.