Are there new maps for cod4 in a patch

Yes there are.
They're in patch 1.6
There are 4 new maps
-Chinatown
-Broadcast
-Creek
-Killhouse

And there is/was another new map.
I don't know in whitch patch it is.
It's named Winter Crash.
It's a version of the normal map Crash but with snow etc.
Near the crashed plane stands a Cristmas Tree with a lot of presents.