As you already know, BO is avaliable since 3 days ago, the online community seems to be more crowd in less time and continoulsy getting new players, faster than any DS cod game.
This blog will let clear some aspects of the multiplayer (MP) that may help you, starter players, and show you some aspects you didnt notice or is confused with, veterans
I will add info here baseed on what i figured out and what i know is right and detailed. so it may be incomplete.
Random WiFi Matches:
[Quick Match]
Looking for a random WiFi match takes just a while, 1 minute, maybe 2...generally between 35 (or less) seconds and 4 - 2 minutes
You can Join already started matches and people may join anytime, until the room is full. There is no latency check, disconnections rarely happens due to connection problems.
If you use a flashcard, depending of your card and your ROM file, the anti-piracy will automatically kick you from WiFi matches (it says it s Latency, but it isnt.), you can bypass this patching the room or actualizing your card, find by yourself i can't say more here.
Hosting:
[weapon rules] → No Knives - Only Machineguns - Only Rifles - No Snipers - Only Snipers - Only Knives - Only Pistols - No explosives
[Game types] → Capture the flag, Sabotage, Deathmatch, Team Deatchmatch - Team Capture the flag
[Stages] → 8 or 10 stages, i dont remember clearly
[Hoster connection] Hosting may give you the advatage, but it freezes a little while players are in the lobby after the match started (very very little) and when someone disconnects too. (its like 0.25 seconds)
Weapons:
a LOT of weapons to choose, i will post detailed blogs about each team weapons.
You can get new weapons by accomplishing tasks, you get modificators (scope aim, grenade launcher..hehe my favourite) and new weapons too.