I'll just drop in my suggestions from my experience as a player on CityRPGs.
- First up, the thing that bothers me the most, CityRPGs turning into a giant deathmatch. I hate it when this one criminal saves up, stores up like 10 weapons in safes, and proceeds to kill everyone on the server, over and over again. Especially since cops are underpowered with batons, these starfishs continue killing everyone for minutes on end, until they leave, get arrested (but they usually just bail out, and proceed with killing), or get bored.
Nobody likes earning up money, carrying it to the bank, then getting killed by some friend in a plane 20 studs before they reach the bank. The players are almost always defenseless in such cases.
- Okay, next is a minor problem, but could be fixed. Most CityRPGs have the raised roads with giant holes in the ground for lots. However, players constantly fall down into said pits, getting stuck, and either have to Self Delete, or have an admin fetch them out.
- jobs and skill sets can be confusing at times.
Anyways that's just my thoughts, good luck. I may apply to help moderate the server.