I don't mind matchmaking, though I prefer dedicated servers. What I do mind is these things happening: 
 
1. Getting betrayed without the option to punish or forgive.
2. Starting a match, playing all of five seconds, then getting a selecting new host/starting game latency hang, before it resumes gameplay and then for a couple of minutes afterwards suffering from FPS hitches.
3. Half of my team leaving, and then if I leave I get penalised for it. (A forfeit option, when 50% of the original players on your team have left, could be implemented.)
4. Having everyone select Team Sniper every-fucking-time the option comes up in voting. (I don't mind Team Sniper sometimes, but it needs its own playlist.) 
  
I know this comes off as very critical, but these things make the multiplayer experience really frustrating. Number two on the list, especially, is the worst offender for making me rage at the screen. The rest of these points I can live without being resolved, but I need my online multiplayer lag-free.  
 
I also think that withholding the co-op campaign matchmaking feature was dumb. Let people play the game the way they want, ffs.

I am looking forward to campaign matchmaking. At least we know it's coming.
 
As for the MP modes, I can't tell much yet since I haven't played much yet. Played quite a lot of Firefight matchmaking already.
 
While it's great fun, it lacks a sense of urgency because of unlimted respawns. Never failed a round ever. I can see it turning into a grind for XP and Currency quickly.

" @SunKing:    I would kill for some sniper maps or even normal... "

" @Teran said:

" @SunKing:    I would kill for some sniper maps or even normal... "

So make some in Forge. "

" I don't mind matchmaking, though I prefer dedicated servers. What I do mind is these things happening:  1. Getting betrayed without the option to punish or forgive.2. Starting a match, playing all of five seconds, then getting a selecting new host/starting game latency hang, before it resumes gameplay and then for a couple of minutes afterwards suffering from FPS hitches.3. Half of my team leaving, and then if I leave I get penalised for it. (A forfeit option, when 50% of the original players on your team have left, could be implemented.)4. Having everyone select Team Sniper every-fucking-time the option comes up in voting. (I don't mind Team Sniper sometimes, but it needs its own playlist.)   I know this comes off as very critical, but these things make the multiplayer experience really frustrating. Number two on the list, especially, is the worst offender for making me rage at the screen. The rest of these points I can live without being resolved, but I need my online multiplayer lag-free.   I also think that withholding the co-op campaign matchmaking feature was dumb. Let people play the game the way they want, ffs. "

I agree with you in regard to getting betrayed and you have no option to boot sometimes. More often then not though, my teammate will walk in front of my grenade or something and die and boot me. Awesome.

I agree with the points you make, but they've done A LOT right with this beast too.
 
I've run into the whole betrayal not giving the option to kick/forgive a few times - but they were all accidents so it would've been meaningless if it did anyways. Do they only give you the options after someone's done it twice perhaps?
 
The host switch/framerate thing happens to my buddy quite frequently but not to me.

The latency issue can be annoying but then Halo games are very popular, and thus even the great unwashed with moderate Internet are allowed to play. 

I would like an option to increase the difficulty in firefight matchmaking.  Of course custom matchmaking is the holy grail that this game is missing.

" I agree with you in regard to getting betrayed and you have no option to boot sometimes. More often then not though, my teammate will walk in front of my grenade or something and die and boot me. Awesome. "

You should straight up be able to choose any gametype you want. If you want to just play snipers all day then you should be able to. If you want to play SWAT all day then you should be able to. 
 
I like the voting system but it leads to a lot of repetitive play and not everyone likes all the game types. 

I don't have my copy of Reach yet, but from reading comments on forums there is one thing I've learned about multiplayer. Apparently every game type needs its own playlist. I think I've seen a post on just about every game type proclaiming it should be separate. Now, I haven't played Reach since the beta, so I'm not criticizing the OP's or anyone else's opinion. I just think it's kind of funny.

" I don't have my copy of Reach yet, but from reading comments on forums there is one thing I've learned about multiplayer. Apparently every game type needs its own playlist. I think I've seen a post on just about every game type proclaiming it should be separate. Now, I haven't played Reach since the beta, so I'm not criticizing the OP's or anyone else's opinion. I just think it's kind of funny. "

" I agree with the points you make, but they've done A LOT right with this beast too.  I've run into the whole betrayal not giving the option to kick/forgive a few times - but they were all accidents so it would've been meaningless if it did anyways. Do they only give you the options after someone's done it twice perhaps?  The host switch/framerate thing happens to my buddy quite frequently but not to me. "

I think combining SWAT and Team Sniper would be the way to go, as they're quite similar in some ways, and that way you wouldn't have just one gametype on its own. 
 
Popular vote as a means to select gametype is a funny thing. It seems quite fair, since everyone gets their vote. The problem is when you look at other games like CS, where if you had a voting system instead of a server browser you might end up playing de_dust/dust 2 for the rest of your days. I think, in general, voting works, but maybe the playlists need to be juggled about a bit.

They give you the option only after a certain amount of friendly fire damage has been done.

" I am looking forward to campaign matchmaking. At least we know it's coming.  As for the MP modes, I can't tell much yet since I haven't played much yet. Played quite a lot of Firefight matchmaking already.  While it's great fun, it lacks a sense of urgency because of unlimted respawns. Never failed a round ever. I can see it turning into a grind for XP and Currency quickly. "

While it's no fun to lose 50% of your team and probably get your ass handed to you because of it, you'll come away with a similar amount of cR regardless of how well you play just for finishing the round, so it's beneficial to stick with a game until the end regardless of your competition.

I think they need to make more playlists.  Everyone always goes for Infection, SWAT, and snipers.  These should have their own playlists

 Bugs I've noticed today alone (but have happened before) 
 
Auto changing weapons before I die, so much for being able to defend myself. (this happens more than a couple of times) 
 
Reloading my pistol in the middle of a fight, only to reload it RIGHT AWAY a second time (happened twice today) 
 
Spawning, not since Halo 2 have I spawned in front of so many enemies or grenades. In Halo 1 if all the red guys were in blue base it was spawn blue team in red base. In every subsequent Halo it spawns you in your home base, promoting spawn killing. 
 
Auto-aim, again this seems like more of a throwback to Halo 2 but today I sniped a guy, his teammate charged me, I panicked and swipe sniped, fired a good meter from his head or body and he died from me "sniping" him. 
 
Lag, this is also one of the laggiest halo games, even the beta wasn't this bad (well maybe for Invasion)    

I dont' kno whty everyone picks SWAT/ team Sniper. It's not that I suck at it, but its' boring ash ell. No variety ad you only get one weapon. CAn't wait for htat new patch to come out. 

" @pweidman: Theres actually an "advanced" value system in place for when you betray someone. Basically if you betray someone right off the bat with no kills, chances are your giving the person you betrayed the option to kick you, If you are doing well (adds up kills, damage done to teammates, deaths, times you've saved teammates and times you've avenged teammates) it will be less likely to give the person you betrayed the option to kick you. I was in a tank for a game of CTF, had 47 kills and 2 deaths, our team stole the enemy tank drove it back to the middle of the map, I panicked and fired on it killing 4 of my teammates and it didn't give any of them the option to kick me. I know this because they all came over and started punching and grenading the tank thinking I did it on purpose.   Also I support the custom matchmaking, even a system where you can enter the game type, map and some other details and go searching would be ideal imo. "