Despite not playing LSPDFR (although I plan to at some point), I do heavily download and use multiple police vehicle mods for my multiple GTA V mods folders. And with that, I do like a bit of ambience in my various 'worlds', so to speak.

 

I've noticed that outside of the Mission Row and Textile City police stations, primarily, that all police cars that spawn outside there are all LSPD Staniers - or police1.  But say I wanted to have the other police vehicles, or more than most likely, addon police vehicles spawning in the parking lots of these stations, without having to download mods such as RDE (if there is a small script that does the job, I'll download that) how can I change that 'manually'? I've heard that it might be possible elswhere, it just seems rather complicated... and I've also forgotten it.

Hello,

First step is to find a replace vehicle that you want.

2. Go into OpenIV.

3. Navigate to: mods/update/X64/dlcpacks/patchday4ng/dlc.rpf/x64/levels/gta5/vehicles.rpf

4. The files you want to replace are: police.yft and police.ytd

 

Hope That Helped!

Update: had a bit of a look in vehiclemodelsets.meta, seemed promising enough, though I'm not sure whether that worked the last time I tried it a few months back.

 

Would editing the vehiclemodelsets.meta and replacing the police3 entries with the respective addons work?

To replace police3 you must find a vehicle model that is replace and not addon. Otherwise it will not work.