If anyone has played Call of Duty 4. You'll have at least once gotten into a game with shit ping. If your Australian/NZ this happens 90% of the time.
Treyarch put search preferences into Call of Duty: World at War.
Infinity Ward hasn't said whether it will be in CoD MW2 yet.
If you are from Australia/NZ and have an IW forum account, post your support in this thread!!
Infinity Ward • View topic - MW2 Search Preferences