You can't choose to host it. the game decides host based on connections.
You cannot on live because that is how it is programmed. But on private you can host.
There is no manual way of hosting an CoDMW2 online ranked match. This is because hosts of the game are chosen automatically by the server. There is also no way of telling if you are the host or not. However you can host private xbox live matches although you will not receive experience or challenges.
the best map for xbox live on the game modern warfare 2 is either favela or rust.
both
Same
To put it simply, you can't. Well, not unless you host a private match. As for xbox live/PSN/Computer, a host is randomly selected. Depending on your connection strength (Excellent,Good, Bad, Horrible) you will usually be the host if its in "Excellent".
Yes, it is a Spec ops game type.
Im a huge fan on the Call of Duty Series especially Call of Duty 4 Modern warfare, but i say Modern Warfare is a good game that does live up to some of the hype about it, but from my point of view i do see it as an overrated game, the graphics aren't even that different from the first modern warfare its just an extra few guns and game modes that they have take the dedicated server away. Also many things such as bullet lag, care package glitch and javelin glitch which were never tested before released, and had to be patched after release.
In Xbox Live i say no but the campaign is cool
There are no avatar awards for Modern Warfare 2 on the Xbox 360. There are, however, Modern Warfare 2 themed items available in the Xbox LIVE Marketplace. To find them, first you must enter the Avatar Marketplace. Then, select Game Styles. Look through the pages until you find Modern Warfare 2, and from there you can buy what you wanted for a set amount of Microsoft Points.
Its been said that at least 30% of the xbox live community playing Modern warfare 2 are girls.
Well I live in England and most regular game shops such as Game, Gamestation and even Argos will sell MW2. If you live in America I'm afraid I cant help you though.