In the first place, MTA sucks xD Map editor is way easier and much better to map.
It's a cool map, but yeah, everyone who knows how to map would imagine something similar to SWAT objects and equipment and sure will add as the base.
I think it's pretty useless to have SF and LV as we will always spawn in LS and we would only use LV and SF spawns if there are suspects so the members are lazy enough to go to other city and catch the criminal.