Before the latest update it was uncommon that I could not get into a match, but now it’s totally broken again. At least on the team slayer server, I haven’t spent a lot of time on the others, but team slayer gets stuck looking for players, and then “searching for more players”. I can’t get a match anymore. 343! You must fix!
It seems that I can find Big Team Battle games, but as of now I’m experiencing atrocious lag.
UPDATE: Only managed to get into one match in BTB, couldn’t join any after that.
Team Halo 2 Anniversary has been working flawlessly for me for the past several patches. I was even able to find a BTB game.
i said this in another post… the 12/3 update was working flawlessly for me, had a party of 5 in a BTB finding matches rather quickly, and rarely splitting us up… it updated for us a little while after that, completely broken again for us, and they even removed parties of 5 from BTB so we had to kick 1 guy to even play, and matches took about 10 min to find and split us up every single game afterwards…
> 2533274802430675;3:
> i said this in another post… the 12/3 update was working flawlessly for me, had a party of 5 in a BTB finding matches rather quickly, and rarely splitting us up… it updated for us a little while after that, completely broken again for us, and they even removed parties of 5 from BTB so we had to kick 1 guy to even play, and matches took about 10 min to find and split us up every single game afterwards…
This is the most frustrating game launch in history, especially since Halo (even Halo 4) has always had perfect launches. How can it be taking more than a month for them to fix this?! The Halo Reach beta had the same problems on day one, and it was completely fixed within hours. Why the flip is it taking so long just to get matchmaking to function properly?
Same… only TEAM SLAYER is working for me. 
Selling it after H5 beta anyway.