We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
None have dedicated servers that are used for playing the game.
Not true. Lead 4 Dead 1 & 2 are dedicated. Battlefield Bad Company 2 is dedicated (and pretty much most other EA games). Rainbow 6 Vegas 1 & 2 allow you to create dedicated servers using your own Xbox 360. There's a few more though I can't name them all
off the top of my head.