Well I think the new maps in the map packs for Vegas are great, I think they missing alot of their potentional. Almost every map online in vegas is a warehouse-like thing or a mexican town, I think they need more exotic vegas maps. I heard someone say they are working on another pack, "blue" pack, which i don't know if its true, but if it is I know some cool maps they should do.
1. A map like "The strip" from story mode in downtown vegas with blown up cars everywhere
2. A freemont street map
3. A map based on Vertigo Spire
4. A dantes theatre map
5. A construction yard in dantes map
I think areas like that would make for really sweet levels. Especially Freemont street, going through that area in story mode I couldn't help but think how amazing it would be in multiplayer.