Household yes but same xbox 360 no
no. they can only be used once
Nope, must have 2 live accounts
yes anything you get from xbox live will stick with your gamer tag but if you are wanting to buy it once for two xboxes that wont work
doesn't seem to have a point on your head, but in Halo:Reach guests can use a mike too, and in all the games I've played spliltscreen using 2 live accounts both players can use a mike.
Well, you have to first buy and membership. You can find them at like target or gamestop. Then once you have sign up your membership on your xbox you can sign yourself in to xbox live. If you have another player that's playing on your xbox with you you can sign them into guest live. Only two people can play live on the same xbox with halo reach.
I am not absolutely sure as to why the usb headset won't work but my best guess would be that the software needed to use the headset (if applicable) may not be able to downloaded using the console. Microsoft has released several different headsets for the chat feature. Two that i know of are the standard headset that comes with the XBox 360 Pro and Elite and Non Microsoft headsets made for the 360 like the Turtle Beach headset which will play game sounds in surround sound as well as party chat.
Well, ALL the new modern games that have came out come with a two-day trial for Xbox Live.
you cannot do this
On Xbox you can. Either on Xbox Live using internet connection, co-op campaign with two controllers, or custom match with Xbox Live or two controllers
No Live is for Xbox 360
Call of Duty 3 first of all needs to have the ability for online multiplayer gaming, (which it does). It also has to be able to handle multiple people on the same xbox 360 console and at the same time being able to play online multiplayer. Halo 2 for example can have 4 people playing on the same xbox console and at the same time connecting to other xbox consoles for online multiplayer gaming. If the game can do this, you must also have 2 different xbox live accounts. You can not use a guest off of another account as an xbox live account because the guests do not have the ability to talk through a mic, even if you have 2 mics. If you have 2 xbox live accounts, then the two of you on the same console can talk to other players on xbox live as long as you both have separate accounts, controllers, and mics.