Yes, there is Nuketown. On our server you can vote at the end of the round for the next map.
Cod4 Nuketown Map Download
We have a larger Nuketown version for when the server has 32 players. The map is done so the outer areas that you cant normally get to are accessible. We also have a 1:1 copy of Nuketown 2025 on our server. We host maps from CoD1 thru BO2, and again the players get to vote at the end for the next map to play. Custom maps, fast downloads for custom content (especially if you have COD4 X installed) and ranked.
TDM game type, hardcore health, very fast paced.