Frostbite -Easy to learn (d2 anyone?) and fun map to play and no major bugs. Should be played in NC.
Snowtown (was in NC 2007) - Same as above. Huge map with lots of possibilities on terrorist side! Should be included aswell.
Vorort (was in NC 2007) - Again, same as above.
Villa2 - Technically, a good map (good fps and no bugs) but just a bit stupid map if you ask me - unnecessary hallways here and there, and the other bombsite room is just way too small making the firefight distances way too short (getting bit technical here lol).
Werk_ost - One huge labyrinth and I get worse fps here than in rail or snow.
Office2 - Maybe a little too small map and we already have one snow...
Desert raid - fun map, which has it's bugs, but I would include this one to see, can actually someone win a majority of the terrorist rounds...