Let's talk.

Instead of looking for maps you can try to add unique jobs and addons.
People like to try new things but they hate download time so it's pretty hard to do it.
You can have ways to make money that other people don't have obviously.
Also, you can do events like TDM or something like that for a prize like VIP or Money.
Try to look for cool weapons, sweps and things like that.
GOOD LUCK!