some matches have been a bit laggy, when I was chasing opponents in a match sometimes he/she glitched away from me, happened to me several times) some NPC's glitch a tad bit, not that noticeable.(but it could be my connection, I never rule it out)

the only thing  hate on the MP is when you finally find your target and are in the middle of your assassination, someone comes out of nowhere and kills you...

Lol I hate that as well. I just killed my target and then my pursuer appears from nowhere and assassinates me. Then it pops up, "Your Persurer observed your kill"... Fuck.

Then again, I can't really talk because I do the exact same thing back to them lolz.

My first impressions...

The good...

- Profile schema that can be changed after death.
- Level up system based in kills.
- Kills cultscene.
- Mechanics of search and attack the target.
- Power ups, skills and abilities.

The bad...

- Gets boring very fast.
- Lack of action.
- Lag. Sometime the people of the town are slow to appear.
- You can kill and be killed in the air or climbing a wall.

I liked but this is not multiplayer that I managed to play  for hours and hours... I get tired very quickly.

IMO

This is a Beta and many options and modes are locked ... so can get much better in future.

Edit - I hated when I killed anyone and another was wating to keep me because when you kill you have no action.

I'm really really disappointed with this multiplayer beta, it's nothing what I was expecting, with assassins creed being all about stealth and sneaking kills I was hoping the multiplayer would of been the same but it's not.

The multiplayer just seems a complete shambles, there's doesnt seem to be a good balance with trying to find your target and also avoiding being killed at same time it just makes for players running around jumping everywhere rather than being stealthy which is what Assassins Creed is all about!. In my opinion I think you should either be the hunter or be the prey per game instead of both. Also as i said before the previous Assassins Creed games have all been about stealth, sneaking up on targets and staying undetected but there's simply no need for stealth in this multiplayer at all because the person hunting you down knows your EXACT location, I think they should of not given away your location so blatantly by having a compass pointing them to where your standing, and maybe instead just have circle that fills up and empties depending on how close you are so you have to work out which direction to head in to kill your target and once your in a certain radius it completely fills up and it's then your job to look for the person by matching them to the portrait which you are given at the start, this way it'll make it more fun and also easier for the prey to try and stay avoided. Also the prey shouldnt be given any clue at all if there assassin is near them, it should be the players duty to stay vigilant and undetected.

VGC Beta Impressions (written by me): http://gamrreview.vgchartz.com/preview/45053/assassins-creed-brotherhood/82350/

Basically, I like the general idea. There are one or two things which need tweaking in terms of concept and actual gameplay. When the game works properly, in my opinion, it's a blast. The trouble is, it's unforgivably buggy. You stop whenever someone is killing you. The stun button rarely appears, and sometimes the kill button is missing, too. Game freezes. Servers crashing. They have a month, and they really need to fix all of this.

Reading your Impressions was great! Well written and very informative.

And yes I totally agree with you that the Stun Button doesn't show up as often. It's almost non existant.

I CAN"T WAIT FOR THIS GAME ! I HAVE NEVER BEEN THIS EXCITED FOR A GAME BEFORE ! NOVEMBER 16 2010 - JOIN THE BROTHERHOOD !!!

I could'nt get into the first one,but loved the last game. If it's anything like the second game,then I'm sold.

From Ubisfot Forum on the changes from the Beta:

Recently, we wrapped up the Assassin’s Creed Brotherhood closed beta. For the duration of the beta we received tons of great feedback from the community. Today, we’re happy to share with you a list of some of the improvements you’ll see in the final version of Assassin’s Creed Brotherhood when it ships in November. This list is by no means complete, but it should give you a good idea of what to expect from the multiplayer mode in the full game. Once again, we’d like to give a big “Thank You” to all who participated in the beta and helped make it a success!

Improvements / Fixes:

• Improved Matchmaking System (faster)
• Improved Kill Cams Setup
• Improved Spawning System (better distribution of targets, better spawn points and team specific spawns
• Improved Contract Distribution System for Wanted Mode
• Improved Abilities Balancing
• Improved Smoke Bomb Ability (faster execution and more efficient effect)
• Improved Scoring Display (Score are now displayed during Kill Cams)
• Improved Ragdoll System (during Kills / Humiliations)
• Improved Lock Mechanism (more precise and responsive)
• Improved Overall Stability
• Improved Replication (players Pop-ups / Crowd)
• Improved Character Control While Climbing
• Improved Escapes (double and triple escapes are easier to do)
• Improved Sounds
• Improved Humiliation (Stun) Rules in Wanted
• Improved End Game Screen (simpler and clearer)
• Improved Gentle Push blended in a group (Doesn’t remove the player from the group)
• Bug Fix: Some Lag in the Menus
• Bug Fix: Double Skin in a Session
• Bug Fix: Hard Humiliation in a Smoke Bomb
• Bug Fix: AI standing on benches
• Bug Fix: All HUD disappears until the end of the session , except Compass and Timer
• Bug Fix: The user gets stunned and can’t stand up anymore
• Bug Fix: Sometimes the morph doesn’t work on NPCs sitting on a bench

New Features:

• New Rematch System (new map at each Rematch [beta rematches in the same map])
• New Group Lobby System (leader actions are visible by all the players)
• Teammate Indicators in Alliance Mode (showing his status and better visibility)
• Gun and Firecrackers Crowd Reaction
• Pursuer Warning Sound (whispers can be heard when your pursuer is around)
• Player Levels in Player List
• Team Score in Menus

New Interview with the Director of ACB talking about AC3, Co Op, etc:

http://www.gamesradar.com/f/assassins-creed-brotherhood-director-and-producer-talk-dumbing-down-milking-it-co-op-and-ac3s-setting/a-20101028155817260079

It's a good read!