No i mean the maps you start with how many is it ? 15? Should be double that so its not borin as fast
No way, mate.
You know that this franchise is Activision's cashcow and adding more default maps will only mean that they won't be able to sell as much DLCs as they wanted. It's all about money.
You can't say that your tendencies holds true for the next person. If there are 30 default maps then there is no reason for me to buy the DLCs. Why would I buy them just to segregate myself from the majority of players? It's a known fact that DLCs fractures the playerbase.