Infinity Ward's Creative Strategist (and once community manager) FourZeroTwo (FZT) asked the community to pose questions via the popular blogging site, Twitter. You've probably seen FZT in Modern Warfare 2's trailers - he's the guy that always gets killed at the end. The MW2 community asked hundreds of questions, and FZT answered in force. Here's a compiled list of features that he has stated will (or will not) be in Modern Warfare 2.
Max level in MW2 is level 70 this time. We're keeping the Prestige icons under lock and key
We have a lot more weapons, perks, attachments, callsign items, and equipment to unlock this time, needed more levels!
We're addressing modded controllers in MW2 - slightly different than the Rate of Fire cap we did in COD4 recently
There isn't an option to search specific regions / countries when matchmaking, but there is improved matchmaking to auto-assist
An entire team of Riot Shields would be slow moving and extremely vulnerable. Flash grenades force you to expose some
Quite a few maps have varying degrees of visibility due to weather effects.
The throwing knife is thrown via the left hand because the right hand is holding the weapon. Low Ready + Throw w/ lefthand
There will be snow maps in Multiplayer
It takes two rockets to take down an AC-130 in MP. Meaning you can't do it alone but can do it as a team
Nope. Air Drops are random. They could be an ammo resupply or an awesome killstreak reward. Its luck of the draw.
No plan for a Demo before launch. The entire team is focused on polish all the way up to ship of the full game.
Special Ops includes a variety of gametypes and mission objectives. One of many being a Wave Defense type.
There are going to be a few rewards for hitting prestige in #MW2 - can't go into details, but there will be goodness to be had
So there you have it, hopefully that answers some of your dying questions - it certainly answered ours! Continue following the story on FZT's twitter, though we will post any dire updates on our site as well.