I think that you should not be able to walk down the street with a rocket launcher, smile at a cop and be fine. Maybe a system where you would select you weapon like normal, and then pressing up on the d-pad (I'm xbox-minded), target, or shoot button would take it out. Once you've got your gun out peds see it and run away call the cops etc., if a cop sees you with it out you get a star or two. There should be room to conceal all your gear except the heavy weapons- where are you gonna hide a rocket launcher? up your ass? I wouldn't mind having to keep my heavy weapons in my trunk or in a duffel bag because if you were walking down the street with that kinda firepower, odds are you're gonna get stars anyways.
When you draw your gun the camera gets in close over his shoulder, like the camera in the splinter cell games.
There should be more assets and they should connect to each other and help you build a criminal empire ex. you buy the printworks and start counterfeiting money and take to a casino you have a stake in and launder it, like that movie with jackie chan.
Blowin up building like mercanaries would be nice but I think it should take more damage. In that game you put a little bit a c4 beside a 10-story building you'd destory it, buildings should get windows and sides blown out before they just collapse.
