Man Thefull

1. There should be levels of crime.
A pick-pocket or a shoplift should be really low level, you can arrest them and take them to the police station in your cruiser or call for someone else to take them.
A mass-murder/terrorist should require ESU/FBI (NOoSE/FIB) assistance and you shouldn't make the arrest (unless you're what I suggest below), once the person is in custody, he should be taken to a armoured NOoSE truck and be escorted by NOoSE and FBI (FIB), you should assist this armoured convoy with your cruiser. The suspect will be taken to Alderney state prison, where he'll stay to await trial (Ofc, the trial bit isn't included, as that'll just get boring). Sometimes friends of the person in custody will try to intercept the convoy, you must take them out. (Most cases you'll have a Annihilator over head as backup)
 
2. Ranks and points, so you have something to gain and aim for,
with a higher rank you have more powers, like being able to control a group of police officers rather then just being with your partner, actually a scripted link between you and other LCPD officers, higher the rank, the more you can control a situation. If you do not command for LCPD officers to move in on a shootout, they'll stay put BUT in cover, and you can command them to move in on your command when you think the time is right (Backup arrived?). When you're lower rank there will be some police staff of a higher rank at a incident, where the radio chat appears on the screen, perhaps have them tell YOU commands?
E.g 
Sgt.Yelps: Unit. - /Officer.-  [You can input your name/unit in the Ini.), go over to the car on the far right and support my men, we're moving in.
- By following orders, you'll get more LCPD:FR points and be able to rank up. By dis-obeying orders you may get penalties and not rank up, all this will show on your LCPD:FR stats on the forum.
- At a certain rank you can join NOoSE (Optional)
- You get points for making arrests, taking down criminals, helping the public and being a good cop (Different situations may vary in points, such as arresting a highly wanted criminal, this would mean more points)
 
3. MVAs/RTCs - Simply, a script that commands one or more vehicles to be 'crashed' over the road, engine damaged, and the patient to be either lying on the ground or in the car 'stuck', perhaps enable the cars to be damaged (Maybe hard to script?). If a patient is stuck in a car, then you can call FDLC and they'll 'take' the patient out the car, you may give CPR to those on the ground but you MUST call EMS.
 
4. Partner selection - Simply able to toggle through your partner just the way you do with your uniform.
 
Or at least something like what I suggested above.
 
Thanks for reading ;)
 
P.S Sorry for any errors, I just scribbled this down as I thought, and it's 7:40AM.